An ambitious novel by two long-time masters of storytelling.

An architect is hired by an eccentric widow to design a new room for her sprawling mansion. It is a huge bling structure with uncountable rooms, trapdoors, secret passages, stairways that lead nowhere, and other geometric oddities. The longer he works on her request, he realizes there is a large story, a mystery and a horror waiting to be revealed.

This one will keep you intrigued and guessing all night.