With $250,000--of somebody else's money--in his pocket, Ellery had the time of his life buying in the famous Garten book collection as it was auctioned off. But the fun didn't last long, for before evening John Mathews, who had been responsible for Garten's ruin, was found murdered. And neither the book collector, nor the dead man's nephew, Walter, who was engaged to Garten's daughter, had any kink of an alibi.
This book is part of the Ellery Queen Detective Books series and is book #18 in the series.