The Yellow Sphere

A nephew with a debt problem. An uncle with a boat, a will, and rather too much whisky. And one perfectly ordinary piece of fruit, rolling across a cabin table in the moonlight.
Sandhaven is a quiet little port. Nothing much happens there - except, on this particular spring night, a slow leak, a sleeping man, and a plan with no loose ends.
Almost none.
John Rhode at his most precisely, mercilessly clever.