If you are opening this, please check the sill first. The note lay behind the boards when builder Oren began work on the house. Its owner had died, and the family knew nothing about the warning.
A shallow cavity beneath the sill held a tin of photographs wrapped against damp. Most showed ordinary meals and visitors. One bore an inscription asking that it be returned to a neighbor if the writer could no longer do so.
The neighbor recognized her wedding photograph, borrowed years earlier so a damaged copy could be replaced. She had forgotten lending it. The owner had protected it carefully, then hidden it so effectively that she could not find it again when illness disrupted her routines.
Oren repaired the sill after documenting where the tin was found. The family kept the remaining photographs and sent the wedding picture home. The note had not guarded a secret. It had preserved a responsibility, phrased for an unknown reader who might someday be able to finish a simple task its author left undone.