Mr. Penumbra’s 24-Hour Bookstore

Mr. Penumbra’s 24-Hour Bookstore by Robin Sloan

This is the perfect summer book, a mystery that is not about death or anything heavy.  All the main characters are uniquely quirky and lovable.  Being a Passenger on this journey to solve the mystery of the store, the founder, and the message was absolutely enjoyable.  Bonus – there is a special quality of the paperback cover, you need to see it in the dark to find out what it is.

Clay takes you through a cast of diverse characters that each have a special ability to help solve the mystery.  Edgar calls him resourceful, but Clay realizes his ability is to bring the right group of people together to get a project/mystery completed/solved.  The epilogue gives a short wrap up to let you know the main characters as do most of the supporting characters have a happy ending.  The enthusiasm of several characters can be felt through the pages.  The love of a good mystery bring this diverse cast together and carries them through to the end with Clay and Mr. Penumbra leading the way at various points through the story.  One mystery remains for me, who is Grumble?  I had hoped it would be revealed as one of the side characters, but alas his true identity is never revealed (which means readers can believe it is whatever character, or non-character, you want).

Festina Lente (make haste slowly) as you read

Character List/Book Summary:

Clay Jannon = former employee of New Bagel in San Francisco, now night clerk for Penumbra’s bookstore, starts recording in Narratio IX, creates codes to track the Waybacklist members and their purchases, solves the Founder’s riddle with the help of his team, as he travels across the country to solve the mystery.  (unbound)

Neal Shah = Clay’s best friend since 6th grade, runs his own company called Anatomix, buys a book from Penumbra’s store, wants a membership in Penumbra’s Waybacklist group, becomes the “warrior” in the mission to NYC. (unbound)

Mr. Ajax Penumbra = cusotidan of the bookstore, sells used books, only one who can buy books, keeps records of all purchases and members appearances when they buy books.  (bound)

Daphne “North Face” = woman who likes biographies, works at Booty’s nextdoor to Penumbra’s

Mr. Maurice Tyndall = 6WNJHY, always in a rush needing a book (novice)

Oliver Grone = works the evening shift at Penumbra’s, studying archaeology at Berkeley, helps Clay find missing punches.

Matthew Mittlebrand = Clay’s roommate, works on special effects, buys a postcard at Penumbra’s, takes photos of Penumbra’s shop to help it be turned into a 3D model.  Helps Clay create a duplicate of a logbook so that Clay and Kat can scan it in at Google.

Ashley Adams = Clay’s roommate, account executive at a PR agency, seems almost robotic in routine and how she likes things.  Eventually, starts a relationship with Matt.

Fedorov = 6KZVCY, oldest customer Clay has met, student of Penumbra, going rouge (novice)

Eric = is upset that Penumbra is selling books that are not on the membership list, hints that Penumbra is not really running the store, is “too enthusiastic in playing the part”

Kat = finds Clay’s coupon, fixes the bug in his 3D model of the store, wants to be a PM at Google where she works (unbound)

Imbert = 6MXH21, shorts and solid, bristly black beard (novice)

Ms. Rosemary Lapin = 6YTP5T, only woman Clay knows on the Waybacklist membership, member of the Telegraph Hill Credit Union since 1951 (novice)

Jad = works with Kat at Google, runs the book scanner, helps Kat and Clay scan a logbook

Unbroken Spine = a fellowship more than 500 years old

Aldus Manutius = one of the first publishers, right after Gutenberg, Teobaldo to his friends

Griffo Gerritszoon = who Manutius gave the code to, made a famous font that is very exepensive

Edgar Deckle = special projects at FLC, used to be in San Francisco now guards the door to the reading room in NYC, agrees to help Penubmra, Clay, Kat, & Neel

Marcus Corvina = The First Reader, Penumbra’s boss, executive chairman at FLC, has known Penumbra for 50 years, asks Clay to stop him

Grumble = hacker with a website that helps Clay with his coding needs, and personally helps Clay get his hands on a collapsible scanner.

Igor = works for Neel, very smart, recruited to help with the mission once the team is back in San Francisco

Greg = student of Penumbra, works at Google with Kat and recruited to help with mission once the team is back in San Francisco (novice)

Tabitha Trudeau = Oliver’s best friend from Bereley and helps Clay find items he needs to solve the mystery.




2 thoughts on “Mr. Penumbra’s 24-Hour Bookstore

  1. One of the books i just might read. I missed out n this when it was chosen as a group read on a literature sight I look in on now and again, but I somehow misse out on it. You have aroused my interest and so why not. Thanks.


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