Mr. Penumbra's 24-Hour Bookstore - Robin Sloan Synopsis In the recent recession, Clay Jannon is out of a job, until he stumbles across a 'Help Wanted' sign in the window of an unusual bookstore, owned by the kind yet mysterious Mr. Penumbra. Clay is hired for the nightshift in the store, and it's clear that it's a front for something else--strange customers come in to the store at all hours of the night, urgently requesting to check out some of the store's unique volumes. Clay decides to get to the bottom of what's going on. Enlisting the help of his friends, their investigation leads them on a wild adventure to solve a mystery that's hundreds of years old. Review The plot is extremely compelling, but lighthearted--it doesn't take itself too seriously. I really didn't know what to expect when I picked up this book--I had seen it was popular and looked interesting. But after the first couple pages I was hooked and in for a fun adventur...