The Cartographer’s Malady

The old house on Hemlock Lane had a way of keeping its secrets, but I thought I’d uncovered them all after three years of renting the attic studio. My name is Vera, and I’m a map conservator, which means I spend my days flattening centuries-old charts and inking in faded coastlines. My workspace was a converted parlor on the third floor, cluttered with drafting tables, magnifying lamps, and a long table where I unrolled fragile parchments.

That night, I was hunched over a 17th-century portolan chart, tracing the phantom island of Antillia that some cartographers swore existed. It was just past eleven, and the rain had turned to a hissing sleet against the windowpanes. I took a sip of cold tea and leaned back, stretching my fingers. That’s when I heard it—a soft, rhythmic tapping, like a fingernail drumming on glass. I froze, the sound seeming to come from the large, dusty mirror that leaned against the far wall. It was a relic from the previous owner, a heavy oval in a gilt frame, and I’d never bothered to move it. I told myself it was the old pipes, or a rat in the walls, but the tapping was too deliberate, too patient.

I shook my head and returned to the map, but my concentration was shattered. I began to notice that the ink on the chart seemed to shimmer, as if still wet. I ran a finger over the edge of the parchment—it was dry, but the lines seemed to shift, rearranging themselves into patterns I didn’t recognize. There was a sudden, violent gust of wind that rattled the windows, and the door to the hallway swung open with a bang. My heart hammered as I got up to close it, and that’s when I saw it: a small, leather-bound journal lying on the floor just outside, bound in a strange, dark red leather that felt almost warm to the touch. I hadn’t seen it before, but the previous tenant had left plenty of junk, so I picked it up, intending to toss it into a box.

The cover was stamped with a symbol I’d never seen—a circle with a wavy line through it, like a stylized sea. I opened it to the first page, and the handwriting was cramped, almost illegible, but I could make out the title: “Observations on the Cartographer’s Malady, by E. Thorne.” I’d never heard of it. Curiosity piqued, I flipped through the pages. It was a diary of sorts, detailing the author’s investigations into a strange malady that afflicted mapmakers, causing them to see phantom lands, to add islands that didn’t exist, to obsess over the margins of the known world. The author claimed that these hallucinations were not tricks of the mind, but glimpses of a parallel world, one that pressed against our own and sometimes bled through.

I laughed nervously, but as I read on, the entries grew more frantic. Thorne described hearing tapping sounds, feeling the floor tremble, and seeing objects move on their own—just like what I was experiencing. The last entry was dated October 15th, 1923, and it ended mid-sentence: “The light from the mirror is…”

I slammed the journal shut, my hands shaking. I forced myself to believe it was a hoax, a scare tactic by some prankster. I went back to my table, determined to finish my work, but my eyes kept darting to the mirror. The tapping started again, louder this time, and I could swear I saw a faint, milky glow emanating from behind the glass. I grabbed a flashlight and shone it at the mirror. The reflection was wrong. My own face stared back, but the direction of the light made my shadow fall behind me, yet in the mirror, my shadow fell the opposite way, as if there were a second light source inside the glass. My skin crawled.

Then the bed behind me creaked. I spun around. My single bed, which I’d pushed against the wall, was trembling, the blankets shifting as if something invisible was sitting on the edge. I froze, just like Thorne described. The trembling stopped after thirty seconds, but I was petrified. I grabbed my phone, but the screen flickered and died. The room grew colder, and my breath came out in visible puffs.

From the radio that I’d left on low, the static morphed into a faint, garbled voice. It sounded like words, but in a language I didn’t know. I strained to listen, and it grew clearer, until I recognized a single phrase, repeated over and over: “He sees the islands.” I didn’t know what it meant, but the hair on my arms stood up.

I decided I had to get out. I grabbed my coat and keys, but as I reached for the door, it swung shut on its own, the lock clicking into place. I rattled the handle, but it wouldn’t budge. I felt a pressure in my ears, as if the air itself was thickening. I turned back to the room, and the mirror’s surface rippled like water. I saw shapes moving within—coastlines, peninsulas, islands that looked like ink blots. One of them, a crescent-shaped island with a black tower, looked exactly like the phantom island on my chart.

Thorne’s journal lay open on the floor, and I knelt to read a line I’d missed: “To cure the malady, one must chart the new land and give it a name. But the island must be true, or the sea will take you.” I looked at the mirror again, and I understood. The tapping was the island trying to attract my attention. The trembling was the world shifting. The voice was the island’s call.

I took a deep breath, walked to my drafting table, and pulled out a fresh piece of parchment. With a trembling hand, I began to draw the island I saw in the mirror, trying to match its every curve and crease. My pen moved as if guided, and the room grew brighter, the cold fading. As I finished the final line, the mirror went still, the reflection returning to normal. The lock on the door clicked open.

I didn’t wait. I grabbed my things and ran down the stairs, out into the sleet, and drove to a motel. For the rest of the night, I didn’t sleep. I kept looking over my shoulder, expecting to see a dark shape on the horizon. The next morning, I returned to the house to collect my belongings, but the mirror was gone. The journal was gone. And on my drafting table, where I’d drawn the island, there was only a wet, dark stain that smelled of salt and rot.

I never went back. I moved across the country, but sometimes, when I close my eyes, I see that island, and I hear the tapping. And I know that somewhere, in the margins of the world, there’s a map with my name on it, waiting to be drawn.