Spencer loves to read. He reads a book every night. But one morning his favorite book goes missing, and in its place is a tulip. Spencer searches high and low, but he can't find his book.

The next morning another book is missing, a nut in its place. And the morning after that, another book is missing.

What is happening to Spencer's books? When he finds out, Spencer devises a surprising solution that will delight readers (and librarians) everywhere.