The Siamese Twin Mystery by Ellery Queen

A Problem in Deduction

In this gripping mystery, a detective and his father find themselves trapped in a secluded mountain mansion during a raging forest fire. As the flames encircle the estate, a murder occurs, leaving the duo to unravel a complex web of secrets and deceit among the eccentric inhabitants. With time running out and tensions rising, they must solve the case before the fire consumes them all, revealing a shocking truth that challenges their perceptions of identity and justice.