When the goddess Artemis disappears while hunting a rare, ancient monster, a group of her followers joins Percy and his friends in an attempt to find and rescue her before the winter solstice, when her influence is needed to sway the Olympian Council regarding the war with the Titans.

A counting book that features a variety of spooky Halloween creatures, from one spider to thirteen ghosts.

A naughty little boy, sent to bed without his supper, sails to the land of the wild things where he becomes king.

Four high school students face off against a soul-stealing beast that has been making young people disappear their small Ontario, Canada, town for centuries.

Sixteen-year-old indentured beastkeeper Koffi and seventeen-year-old warrior candidate Ekon forge an unusual alliance and venture into the Greater Jungle to hunt down a monster that has been menacing their city for a century. Includes author's note.

Contrary to the doctor's orders, from one to five monsters insist on jumping on a child's bed.

Billy and Sheena go with their Uncle, Dr. Deep, to search for treasure and are pursued by pirates who have been dead for two hundred years, and when Billy and Sheena return to land and visit Horrorland they encounter their worse fears.

Jason, Piper, and Leo, three students from a school for "bad kids," find themselves at Camp Half-Blood, where they learn that they are demigods and begin a quest to free Hera, who has been imprisoned by Mother Earth herself.

Losing all hope in his ability to scare people, which is sorely lacking, Leonardo, who is terrible at being a monster, discovers a nervous little boy who seems to be the perfect candidate for him to practice on.