The disappearance of the goddess Artemis while out hunting a rare, ancient monster, prompts a group of her followers to join 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.

The long-awaited prophecy surrounding Percy Jackson's sixteenth birthday unfolds as he leads an army of young demigods to stop Kronos in his advance on New York City, while the Olympians struggle to contain the rampaging monster Typhon.

After encountering a Jersey Devil while on a field trip to the Pine Barrens, Elliot and his new friend Uchenna help their weird teacher Professor Fauna rescue the mythological creature from a pair of greedy billionaire brothers.

"Uchenna and Elliot travel with Professor Fauna to the Texas-Mexico border to save the region's animals and help bring a divided community back together with the help of locals"--

Destined to take over his family farm in Norrøngard, Karn would rather play the board game Thrones and Bones, until half-human, half frost giantess Thianna appears and they set out on an adventure, chased by a dragon, undead warriors, an evil uncle, and more.

After learning that humans are headed toward his hidden home, Firedrake, a silver dragon, is joined by a brownie and an orphan boy in a quest to find the legendary valley known as the Rim of Heaven, encountering friendly and unfriendly creatures along the way, and struggling to evade the relentless pursuit of an old enemy.