The Great Recession has shuffled Clay Jannon out of his life as a San Francisco web-design drone — and serendipity, sheer curiosity, and the ability to climb a ladder like a monkey have landed him a new gig working the night shift at Mr. Penumbra’s 24-Hour Bookstore. But after just a few days on the job, Clay begins to realize that this store is even more curious than the name suggests. There are only a few customers, but they come in repeatedly and never seem to actually buy anything. Instead, they "check out" impossibly obscure volumes from strange corners of the store, all according to some elaborate, long-standing arrangement with the gnomic Mr. Penumbra. The store must be a front for something larger. Soon Clay has embarked on a complex analysis of the customers’ behavior and roped his friends into helping him figure out just what is going on. And when they bring their findings to Mr. Penumbra, it turns out the secrets extend far outside the walls of the bookstore.

With irresistible brio and dazzling intelligence, Robin Sloan has crafted a literary adventure story for the twenty-first century, evoking both the fairy-tale charm of Haruki Murakami and the enthusiastic novel-of-ideas wizardry of Neal Stephenson or the young Umberto Eco, but with a unique and feisty sensibility that is rare to the world of literary fiction. Mr. Penumbra’s 24-Hour Bookstore is exactly what it sounds like: an establishment you have to enter and will never want to leave, a modern-day cabinet of wonders ready to give a jolt of energy to every curious reader, no matter the time of day.

TEXT EDITION:

CLAY JANNON, twenty-six and unemployed, reads books about vampire policemen and teenage wizards. Familiar, predictable books that fit neatly into a section at the bookstore. But he is about to encounter a new species of book entirely: secret, strange and frantically sought after.

These books will introduce him to the strangest, smartest girl he's ever met. They will lead him across the country, through the shadowed spaces where old words hide. They will set him on a quest to unlock a secret held tight since the time of Gutenberg — a secret that touches us all.

But before that, these books will get him a job.