What does Izzy find upon her first visit to Willard Asylum in the novel, What She Left Behind?

By the time Izzy explores Willard after it has closed and rotted, it becomes a de facto horror house, filled with creepy, dark passages and abandoned equipment from its former bustling days. Almost like a character, the reader sees Willard first as a young facility, and then later as a decrepit, abandoned structure, almost as if it has aged like a living being.