Accompanying an architect in an examination of the faded ancestral pile of Cranbury Hall, prim solicitor Arthur Gilroy happens upon his wastrel half brother Oliver, with whom he has an interview later that evening, who is rather elliptical about the reason for his presence. The two part on not unfriendly terms and, soon after, a shot rings out that is attributed to poachers taking liberties on the ownerless land. But when Oliver fails to show up for their meeting, Arthur begins to suspect that “some mysterious tragedy had occurred”…and he might be right, since that shot turns out to have been merely the first attempt on Oliver’s life.
The Invisible Event 