Tap / Space while the needle is inside the lit arc. Hit: the arc moves and shrinks, the needle turns and quickens. Tapping outside the arc — or letting the needle pass through unanswered — ends the vigil. M mutes.
THE STORY
At the river between the two countries there is one lantern, and one keeper. The door of light opens somewhere on the wheel each turn, never twice in the same place, and the keeper must knock while it is open. Souls cross only in that instant.