The Librarian of Doom keeps the world most dangerous books. After a long journey, he returns home to discover his collection of deadly books have been stolen. If he fails to find them, the world will face endless evil. Dive deeper into the story with this special 10th Anniversary edition, marked by never-before-published content, including a prologue and epilogue, and glossary and reader questions.

The underwater library has been attacked. The Librarian will have to retrieve all of the lost books.

A girl follows a group of strangers inside the giant Library of Doom. The strangers want their evil friends released from the pages a pop-up book. Can the Librarian stop them before the world's deadliest criminals are set free?

An inky beast attacks the library and bookshelves of a small mountain town. The Librarian and the Specialist must track the monster down before it obliterates every book in its sludgy path.

Introduces a number of different animals and what they produce. Different food and products created by animals are shown.

Una polea es una máquina simple. Las máquinas simples facilitan el trabajo, como levantar cargas pesadas o mover cosas de arriba a abajo. Las poleas nos ayudan a levantar cosas que no podemos levantar solos. ¿Qué más puede hacer una polea?

Our greatest fears are brought to life in this collection of spine-chilling tales. An ordinary round of the Lava Game turns terrifying. An old lodge for loggers is haunted by a miserable ghost. A boy thinks he's home alone until he finds evidence someone else is there with him.

Introduce young scientists to the basics of pulleys. Through charming illustrations and simple, easy-to-follow text, this nonfiction book introduces pre-readers to the benefits of these engineering marvels, providing everyday examples of a flagpole, a crane, an elevator, and window blinds. Award-winning author Michael Dahl delivers fun, fact-filled text for an engaging read-aloud or beginning read-alone. Includes hands-on experiments!

A young man gets a sliver from a strange book. That night, beneath the glow of a full moon, the man transforms into the Word Eater. The beast prowls the streets, searching for words to eat. If the Librarian doesn't stop it, every word and every thing on earth could disappear.

Una rampa es una máquina simple. Las máquinas simples facilitan el trabajo. Las rampas ayudan a los trabajadores a mover las cosas pesadas de un lugar alto a otro bajo. ¿Qué más pueden hacer las rampas?