Mara has a compact, weather-ready presence, with a square jaw, a broad nose, and a face that looks as if it has spent years squinting through rain. Her dark hair is braided close to her scalp and tied with a strip of faded linen. A fringe of reed fluff often clings to her coat. She moves with the cautious, planted steps of someone used to testing mud before trusting it, but she unconsciously crowds doorways and stands close enough to make strangers notice. Every few moments, her thumb checks the small brass clasp at her collar, as though taking attendance.

Mara is practical and protective, yet curious enough to pry at a story she knows may hurt her family. In a crisis she becomes decisive and physically bold; in quiet company she is unexpectedly funny, though she deflects praise with chores. She wants people to respect the dead, but privately resents how the family's traditions have been used to keep the living silent.

Mara's family once sealed and maintained the burial chambers beneath the reed flats, where the dead were laid in dry niches above the seasonal flood. Her great-grandmother taught her the old marks, but the family nameplate disappeared before Mara was born, and a later generation stopped speaking openly about the crypt. When Mara was sixteen, a flood broke through the old sluice and exposed a burial passage. Her father, Daro, entered with two neighbors to save the remains from washing away. He returned alone, carrying a soaked scrap of an ancestor's record that named an apparent family betrayal. Mara watched the village blame him, and saw him refuse to answer rather than expose what he had found. That silence hardened her resolve to recover the nameplate and learn the truth without letting grave robbers turn the crypt into a prize. Now the sluice is failing again. A local salvage crew has begun asking after the entrance, Daro is too ill to guide her, and her cousin Tavi insists that opening the crypt will ruin the family's last chance at peace. Mara still trades favors with Beto, the ferryman who ferried her father home, though they disagree about how much of the past deserves to be brought into daylight.