On the evening my train hissed into Suzhou, fog clung to the canals like wet silk. I had come to study Ming-era gardens, but the city seemed more interested in studying me. Every doorway wore a faded charm of mirror and coin, and every stone bridge reflected not only water but something else—an extra shadow that belonged to no passer-by.

I found lodging in a lane too slim for cars. The landlady, Mrs. Lin, warned me never to touch the red paper lantern that swung beside her shop shutter. “It is lit for my grandmother,” she said. “She dislikes darkness.” I laughed, thinking the old woman must be nearly blind, but Mrs. Lin’s eyes were serious. “She dislikes the darkness in people,” she corrected.

That night I woke to the sound of scissors. Snip, snip, like metal gnawing bone. Through the lattice I saw Mrs. Lin at the counter, cutting paper—not ordinary joss paper, but vermilion sheets folded into tiny lanterns no bigger than a thumb. She placed each one under the red lantern, where they floated upward as though gravity had surrendered to ancestral duty.

Curiosity outweighed caution. The next dusk I lingered outside the shop. When the street lamps flickered, the red lantern flared brighter, casting a circle the color of bruised plums. Inside that circle stood a woman in indigo qipao, her hair pinned with a silver needle shaped like a cicada. Her face was smooth, ageless, but her feet never quite touched the ground.

She spoke without moving her lips. “Balance must be kept.” Her voice felt like cold tea poured down my spine. She pointed to the paper lanterns. Each represented a kindness done by Mrs. Lin’s family over three centuries. When the count reached one thousand, the spirit would grant them a single wish. If the count fell short, the debt would be paid in breath instead of paper.

I wanted to flee, yet my feet were rooted. The spirit extended a translucent hand. In her palm lay a crimson thread. “Tie this to the wrist of one who has taken more than given,” she instructed. “Tomorrow at midnight, bring their shadow here. The lantern will decide.”

That day I wandered the gardens, but even the famed Lion Grove felt like a maze of eyes. Every tourist I saw seemed guilty of some small greed: a man pocketing a pebble, a woman snapping a branch for a selfie. Could I condemn any of them for such minor sins? Yet if I refused, the spirit might claim Mrs. Lin instead.

Evening rain drove me into a teahouse where an American voice boomed above guzheng music. Mr. Harlan, a gem dealer, bragged about buying jade burial discs from poor villagers for a fraction of their worth. He opened a velvet pouch, revealing rings carved with symbols of protection—now mere ornaments on his pink fingers. Around his wrist I tied the invisible thread while pretending to admire a bracelet.

At midnight I returned to the lane. The red lantern pulsed like a heart. Mr. Harlan’s shadow arrived before he did, stretching grotesquely long, mouth open in a silent scream. The spirit waited, her cicada needle glinting. She lifted the shadow as if it were silk, folded it into a tiny paper lantern, and set it adrift. The flame inside turned green, then white, then simply—gone. The shadow vanished with it.

Mr. Harlan appeared at the corner, bewildered, clutching his chest. Color drained from his face as though someone were erasing him from the world. Yet he did not die; he merely looked smaller, diminished, as if all bravado had been laundered from his bones. He staggered away, leaving wet footprints that evaporated before the next raindrop fell.

The spirit turned to me. “One kindness repaid,” she said. “Nine hundred and ninety-nine remain.” She offered another thread, but I stepped back. I would not be her harvester. Instead, I asked, “What if the family simply keeps giving, never claiming the wish?” Her smile was the hush between midnight chimes. “Then the lantern burns eternal, and the city remembers how to be gentle.”

I moved out the next morning, but not before buying every packet of Mrs. Lin’s osmanthus candy. I handed them to street sweepers, boatwomen, children late for school. Each time, I whispered, “For the lantern.” I do not know if the count ever reaches a thousand, but on every foggy night since, I see red glimmers above the canals—tiny paper stars guiding travelers toward mercy rather than fear.

Some say Suzhou’s gardens are maps of paradise. I believe they are maps of conscience, each rock and pond placed to remind us that every shadow we cast belongs, eventually, to someone else’s flame. If you walk the old lanes and hear scissors in the dark, do not run. Simply ask yourself what you have given today. The answer may keep your shadow safely attached to your shoes—and the red paper lantern quietly, patiently, counting.