The League of Frightened Men

A summary from the back cover:Paul Chapin's college cronies never forgave themselves for the prank that crippled their friend. Yet with Harvard days long behind them, they thought they were forgiven -- until a class reunion ends in a fatal fall (for one of them). Now this league of frightened men is desperate for Nero Wolfe's help. But are Wolfe's brilliance and Archie's tenacity enough to outwit a most cunning killer?