Matt Cruse, a student at the Airship Academy, and Kate de Vries, a young heiress, team up with a gypsy and a daring captain, to find a long-lost airship, rumored to carry a treasure beyond imagination.

A Dogg family and a Katt family are spending their vacations at Western Frontier Park fighting with each other when a youngster from each family becomes lost in the dangerous forest.

"Ten-year-olds Pearl and Ben find excitement in the small town of Buttonville as they encounter otherworldly animals, including a lake monster, during their first official day as apprentices to Dr. Woo, a veterinarian for Imaginary Creatures"--Provided by publisher.

Discovering a smelly creature in her garbage can that she names after herself, Olga befriends and studies the eccentric Olgamus using the scientific method, the practices of Jane Goodall, and other scientific concepts.

Visiting her grandmother in Australia, Livy, ten, is reminded of the promise she made five years before to Bob, a strange, green creature who cannot recall who or what he is.

"It has been years since Helen Franklin left England. In Prague, working as a translator, she has found a home of sorts--or, at least, refuge. That changes when her friend Karel discovers a mysterious letter in the library, a strange confession and a curious warning that speaks of Melmoth the Witness, a dark legend found in obscure fairy tales and antique village lore. As such superstition has it, Melmoth travels through the ages, dooming those she...

"Ten-year-olds Pearl and Ben, continuing their apprenticeships at Dr. Woo's Worm Hospital, discover that Dr. Woo and the sasquatch are both sick with Troll Tonsillitis, and they must travel to the Imaginary World to find the only cure: a griffin's feather"--

Continues the story of Austrian Prince Alek who, in an alternate 1914 Europe, eludes the Germans by traveling in the Leviathan to Constantinople, where he faces a whole new kind of genetically-engineered warships.

Young wizard prince Xar, who has no magic, and warrior princess Wish, an outcast, team up on an adventure that brings them to witches long believed to be extinct.

"Ronan Boyle may be the youngest detective of the secret Garda, but now that he's saved the captain from a spooky cult, he's also the only detective that has the head of an old Irish god in his vastsack! But his adventures are far from over. His parents are still on the run (he told them the prison break was a bad idea!), and he still has to turn over the corrupt wee folk to the leprechaun king and return to the Human Republic of Ireland to turn over...