The Siamese Twin Mystery (Otto Penzler's Classic American Mystery Library)

THE SIAMESE TWIN MYSTERY finds Ellery and his father, the irascible Inspector Queen, trapped in a mountain retreat by a raging forest fire. The members of the household are a strange lot, and the mysterious murder of the retreat's host indicates to the Queens that not only are they isolated with an odd assortment of characters, but a dangerous killer as well!