Chord of the Drowned Choir
Rune sequence puzzle
Medium
By
Bookwyrm
A flooded chapel plays its hymn once. Repeat it before the water rises.
Five runes are set into the altar of a half-flooded chapel. Touch the altar and they sing the choir's last hymn in full, then wait. Repeat it and the sluice gates close. Fail too often and the chapel remembers how its choir drowned.
The runes flicker pale blue and the drowned choir's hymn rings through the water.