Even though Marty's mother has told him that dinosaurs no longer exist, he is certain they are just good at hiding and sets out to find one, encountering many fantastic creatures along the way.

"Seventh-grader Doug Underbelly strives to be a normal middle-schooler, but as secret King of the Mole People, weird things are attracted to him"--Title verso page.

Ten-year-old Harold, the adopted son of a food inventor, discovers that his father's latest invention, soda pop that produces the world's longest burps, also generates furry creatures known as Fizzies.

"Catastrophe continues to stalk Doug as he is put in charge of his school's spring dance committee while trying to spruce up his house to be sold, aided in both efforts by subterranean creatures"--WorldCat.

Mr. Blobule provides an unusual remedy when Senor Sasquatch gets squished on a crowded bus.

Sarah Robinson and her family intended to have a vacation adventure aboard a boat but ended up stranded on a remote and mysterious island. Along with unusual, weird creatures, they met the "Curator," a strange boy who may be an...alien. And then they met Cash, a girl who may hold the key to why Shipwreck Island has been kept a secret for so long. Is there treasure? And will the people hunting for treasure rescue the castaways? The Robinsons have only...

Spending the summer after sixth grade at his great-uncle's oceanside museum, Thatcher and local girl Trudy team up to help Shoal, one of the people of Atlantis cursed by a witch whose head still survives, and who has an army of monstrous creatures helping her.

As Greta struggles to impress a master blacksmith in search of an apprentice, she questions the true meaning of crafting, while Minette receives a surprise package from the monastery where she was once training to become a prophetess.

Olga decides she would like to figure out what planet Meh is from and begins to conduct some research on space travel.

Dr. Zooper answers questions about life's ordinary puzzles, such as why homework disappears or how a song gets stuck in one's head, by identifying and describing different kinds of Mischievians.