Where are my Books? by Debbie Ridpath Ohi

From chapters.ca:
A boy investigates a squirrelly situation to track down his missing stories in this charming ode to book lovers of all kinds. Spencer loves to read. He reads a book every night. But one morning his favourite 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.