"Paris by the Book" by Liam Callanan engrossed me. I read the whole 300 some pages in two days. While working a part time job and going to class. Ask me if I've slept, seriously ask me. I haven't.
Anything can happen in your story, but most writers are afraid to take that risk. Oyeyemi is not afraid to take that risk.
When Mom comes to visit, mother-daughter connections come to mind.