Lagoon at First Light

At 4:52 a.m. my left huarache filled with canal water, and I forgave it immediately because the axolotl in my net was still breathing.

Specimen approximately 180 grams. External gill filaments inflamed, the feathery red of them gone puffy and pale at the tips — a classic stress response, the kind of detail I would write in my notebook later, when my hands stopped shaking enough to hold a pencil. For now I cradled him in the mesh like a handful of wet silk and waded backward toward the cayuco, careful not to jostle the water more than I already had. My thighs had gone numb about four minutes ago. My teeth were doing a thing I recognized from winter fieldwork, a small private chatter I refused to acknowledge out loud.

"Órale, campeón," I whispered to him. "You look like Tepito on a Sunday morning."

He blinked at me with his small black eyes, the way axolotls do, which is to say not really blinking, just existing. Tepito — the neighborhood, the name, the general concept — is a place in the city where people know how to take a punch and stay standing. This one had the look of a fighter who had lost the last round but wasn't done yet. The name stuck to him the way names do, before I'd thought about it.

"Tepito," I said. "Bueno. Don't die on me, Tepito."

From the embarcadero, across the black ribbon of Canal Cuemanco, I could hear Doña Maru setting up her thermos of esquites, the metal lid clanking against the wooden counter, the soft muttering of a woman who had been awake since 3 a.m. and did not require anyone's company but her own. The city wasn't awake yet. Only the people who fed it were.

I set Tepito into the plastic tub I'd lined with canal water and a handful of the cleaner stuff from my jerry can, and I poled the borrowed cayuco home.

—

The sky went from iron to copper while I poled, and the ahuejote willows along the chinampa's edge lit up one at a time, their leaves turning from black to green to a kind of wet gold. That was how you knew you were almost home: the willows telling you so. Their roots stitched the soil to the lakebed, abuela liked to say, the way a good seam keeps a dress together. She said it in Spanish and also, sometimes, in Nahuatl, and the Nahuatl version always sounded like it knew more.

Tierra Flotante is maybe forty meters long and six wide, which is to say it is a whole world. Rows of lettuce, the outer leaves silvered with dew. Cempasúchil in a long orange line along the north edge, already thinking about October even though it was April. Chard that was, frankly, a small disappointment this season; I'd said so to abuela and she'd said the chard could hear me and I should apologize. I hadn't. The chard and I remain estranged.

A forgotten huarache lay on the dock, the strap cracked in the middle. Mine, from two weeks ago, when I'd slipped carrying the water meter and declared the sandal dead. Abuela had picked it up, set it on the dock, and never thrown it away. That was her whole theology in one gesture: nothing on a chinampa is ever really garbage, because the chinampa will decide.

I tied up the cayuco, hoisted the tub against my hip, and headed for the shed at the far end. The greenhouse leaned a little to the east, the way it had leaned since the 1985 earthquake, when abuela had propped it up with a wooden beam and declared the matter settled. Through the cracked kitchen window I could see her, already moving, a silver braid down her back and her hands in the masa. She was pressing quesadillas de flor — squash blossoms, a little epazote, a little queso Oaxaca — and humming something low that I recognized and also did not, the way I recognize most of her Nahuatl songs. Known by the shape, not the meaning. That has always been my relationship to half of my own inheritance.

"Abue," I called, low.

"Niña," she called back, without turning. "You have class at ten."

"I know."

"Your feet are wet."

"I know."

"Bueno." She pressed another tortilla. "Don't drip on the seedlings."

I didn't. I never do.

—

Inside the greenhouse, the light was the soft gray of morning filtered through plastic sheeting, and the air was eight degrees warmer than outside and smelled, as it always did, of wet earth and the sharp green of epazote leaves crushed underfoot. The breeding tubs ran in two tidy rows along the back wall — PVC pipe and plastic bins and a pump I had rebuilt twice, held together by electrical tape and spite. My scholarship stipend was in there. My savings were in there. Two years of my life were in there, swimming in slow circles.

I set Tepito's tub on the work bench and went to my meter. pH 7.2. Temp 18°C. I wrote it down on the back of my hand with a ballpoint pen, because my notebook was across the room and Tepito was not, and priorities are priorities. I readied the quarantine tub — fresh water, the good filter, a handful of the big river stones he could hide behind if he wanted to — and I went to the shelf and took down the jar labeled, in my own slanted handwriting, ANTIBIÓTICO / GILL ROT / 1:1000. I have a lot of jars labeled in my own slanted handwriting. It is the penmanship of a woman trying to convince herself she is running an operation.

I lifted him. I have lifted hundreds of axolotls. Each one feels, the first time, like I'm going to drop it, because their bodies are half water and their bones are half not there and the only thing they trust is that no one will hurt them, because nothing in their evolutionary history prepared them for a species that would. I cupped him under his belly, one palm, and slid him into the clean water, and I watched his gill filaments fan out and then, slowly, relax.

"Bueno, campeón," I said. "Bueno."

From the door, abuela's voice came without her face. "La sonrisa del agua," she said, soft. The smile of the water. She had other names for them — things she had from her own grandmother, things she only said when she thought I wasn't listening — but la sonrisa del agua was the one she used when she wanted me to remember. "And you have class at ten, niña."

"I know, abue."

"Bueno." A pause. Then, without looking at me: "Coffee's on."

She padded back toward the kitchen. I heard her huaraches on the packed earth, the small dry whisper of her braid moving against her back, and I thought, not for the first time, that if I ever lost this chinampa I would not know how to be a person anymore.

—

Mateo arrived, as Mateo arrives, by water.

I heard his trajinera before I saw it — the slow wooden knock of the pole, the hum he does when he's pretending not to be sleepy — and then he was there at the dock with two styrofoam cups of coffee and the specific energy of a man who had been awake for approximately eleven minutes.

"Doctora," he said, handing me one.

"I am not a doctor."

"You will be. Drink."

I drank. It was terrible, which meant it was from the stand by the Nativitas embarcadero, which meant Mateo had come the long way around, which meant he'd wanted to see me before his first tour. I filed the information away the way I file all information about Mateo, in a folder I do not open.

"You missed Lupita's quince," he said.

"I know."

"The whole family asked. Órale, where's la doctora? She too good for sparkling cider now?"

"I had a water sample crashing."

"You always have a water sample crashing."

"That is because water samples always are."

He snorted. He did not ask why I was soaking wet to the hip. He did not ask why my left huarache was upside down on the dock drying out. He sipped his coffee and looked at the canal and said, conversationally, "Your mamá called me."

"Oh no."

"She said you're not opening her voice notes."

"I am not."

"She said there's a serious job up North."

"There is always a serious job up North."

"Órale." He took a long pull of his coffee. "That's what I told her."

I loved him, a little, for that. Just a little. Just the usual amount. I did not say so. I looked past him at the copper water and the ahuejotes and the small miracle of another day not yet broken, and I said, "I have to get back. Specimen."

"Tell the specimen I say hi."

"His name is Tepito."

"Of course it is."

He pushed off from the dock without looking back, and I watched him go, the trajinera's painted roof fading between the willows, and I thought, as I often think, that one of these days I would have to figure out what to do about Mateo Cervantes. But not today. Today there was a sick axolotl and a thesis two weeks behind and an unopened voice note from Coyoacán, and these were all things I could handle if I handled them one at a time.

I went back inside.

—

I settled at the bench with my notebook — the battered A5 with the water-warped cover, the rubber band that had broken and been replaced so many times the replacements had replacements — and I opened to a fresh page. New specimen. Date, time, location. 180g. Gill inflammation, bilateral, moderate. A small pencil sketch of his markings: the dark freckling across the dorsal ridge, the pale underside, the faint asymmetry in his left external gill.

I reached for the scanner out of habit. The secondhand PIT tag reader, electrical tape on the grip where I'd dropped it last October, battery held in by a strip of Velcro. I passed the wand over his flank the way I pass it over every new arrival, expecting the flat silence I always get from a wild animal.

The scanner beeped.

I looked at it.

The screen showed a number. Fifteen digits, the long friendly ID of a tag I myself had programmed. I read it twice. I read it three times. My hand, I noticed distantly, was no longer holding the pencil.

"No," I said, to no one.

I thumbed back through the notebook. Six months ago, give or take. November. Doña Luz's cohort — the successful one, the one I'd written up for Dr. Silva with something as close to pride as I let myself feel. I had tagged and released four females and two males that month into the quieter stretch of Cuemanco by the northern embarcadero, the one the cartel of escaramuza riders kept unofficially cleaner because their horses drank from it. I ran my finger down the column.

ID ending in 4471. Female. Approximately 205 grams. Gill pattern: heavy freckling across the dorsal ridge, pale underside, symmetrical gills with full filaments.

I looked at Tepito.

Tepito was male. Tepito was 180 grams. Tepito's left external gill was measurably smaller than his right. Tepito's freckling pattern was different — not wildly, but in the way that matters to someone who has spent two years staring at freckles: the constellation was wrong.

The tag said 4471.

The animal didn't.

I sat very still. I set the scanner down on the bench, slowly, the way you set down something that might break. Then I stood up and I lifted Tepito out of the clean tub and held him, gently, under the work lamp.

The yellow light was warm on my hands. His skin was cool. I turned him, very carefully, onto his left side, and I parted the feathery filaments of his left gill with the tip of my little finger, and I looked.

Behind the gill rachis, where a PIT tag sits subcutaneously in a living axolotl — where my own tags sat in my own animals, under a small puncture that healed in forty-eight hours and disappeared in two weeks — there was a scar.

Not a puncture. A scar. A clean, deliberate, surgically healed incision maybe three millimeters long, the edges closed and pale, the kind of scar that comes from a blade and a steady hand and time. Not a predator. Not a net. A person.

Someone had cut the tag out of Doña Luz's number 4471.

Someone had put it back in, under a different animal's gill.

Someone had closed the incision and let it heal.

I stood in the warm yellow light of my grandmother's greenhouse, in my wet huaraches, holding a creature that was wearing another animal's name, and I felt the morning go very small and very quiet around me. The pump hummed. Somewhere across the chinampa, abuela was still singing in Nahuatl, and the comal was still hot, and the copper was still climbing the willows.

"Someone took her out of the water," I said.

My voice came out flat. Lab-report flat. The way it does when I am very, very afraid.

Tepito blinked at me, which is to say he did not blink, which is to say he looked at me the way axolotls look at the world — as if he had been trying to tell me something, and had finally, finally been heard.