The Mixed-Up Files of Mrs. Basil E. Frankweiler meets Harriet the Spy in this middle-grade historical fiction novel inspired by the real life of Viviani Joffre Fedeler, born and raised in the New York Public Library.

Eleven-year-old Viviani Fedeler grew up surrounded by books, but now she’s ready for her own story to begin. As the daughter of the Library superintendent, Viviani has explored every nook, cranny, and room—except the ones her father keeps locked.

When Viviani suspects that the Library is haunted, she decides to spook her friends and new girl Merit Mubarak with a harmless little prank. But what begins as a joke quickly gets out of hand. Soon Viviani and her friends have to solve two big mysteries: Is there really a ghost in the Library? And who stole the expensive stamp collection?

The Story Collector is the first middle grade novel in Macmillan’s partnership with the New York Public Library.