Joan Williams: 98 books

The Heroes in Training are entering the Underworld—if Hades can conquer his canine fears, that is. The Underworld usually isn’t really meant to be a fun place—but tell that to Hades! He loves the dark and the stinky smell of sulfur. However, there is one thing that Hades is not a fan...

Twice the quests means twice the adventure for Zeus and his fellow Olympians. After battling fireball-throwing Titans, the young Olympians find themselves on a double quest: Not only must they find more Olympians that Cronus has swallowed, but they’re also in search of magic seeds that will...

Meet Cassandra, the newest student at Mount Olympus Academy! She has an amazing talent—but will her new friends believe her? This Goddess Girls story is based on the myth of Cassandra, who has the gift of seeing the future—except no one believes her. Can Apollo, the god of prophecy, help his new crush?

Persephone learns that it’s ok to stand up for herself in the second book in the Goddess Girls series! Persephone usually goes along with whatever everyone else wants instead of doing what makes her happy. So when she meets Mount Olympus Academy bad-boy Hades, she finally feels like she has...

Zeus and the Olympians head to the Peloponnese to save Apollo’s twin sister, who’s under a sleep spell, in this Heroes in Training adventure. Zeus and the Olympians are off to find Apollo’s twin sister, Artemis, who was captured by the Cronies and separated from her brother. But Titan...

When a flock of angry birds threaten Zeus and his fellow Olympians, they need the help of a new friend—assuming the stranger is actually a friend! After a horrible drought, Zeus and his fellow Olympians are determined to help restore the land as they try to figure out their current mission,...

Iris has a rainbow of colorful experiences, from visiting the Underworld to conversing with her crush in this Goddess Girls adventure. Iris is the most colorful goddess girl at Mount Olympus Academy. In fact, her hair and delicate wings can change color according to her mood! When Principal...

In Athena the Brain, Athena always knew she was smart and special, but she didn’t realize that she was a goddess! When she’s whisked away to Mount Olympus Academy, she worries about fitting in and dealing with her dad (Zeus). Luckily, she meets the Goddess Girls and finds the best friends she’s ever had.

Athena wants to upgrade a labyrinth for King Minos, but her approach causes problems in this Goddess Girls adventure. Athena’s arrogance gets the best of her when her attempts to improve King Minos’s labyrinth have unexpected—and disastrous—results!

Snow White might be jinxed -- but at least she has the other grimmtastic girls to count on! Once upon a time, in faraway Grimmlandia. . . No matter how many lucky charms she wears, Snow White can't catch a break. She's especially worried that her stepmom, Ms. Wicked, is a member of the E.V.I.L. Society....

Medusa discovers that having the golden “King Midas” touch has its ups and downs in the sixteenth Goddess Girls adventure. When Medusa suddenly becomes able to turn objects into gold just by touching them, she is thrilled. Gold, gold, everywhere! But it’s not just objects that become...

In this nineteenth Goddess Girls adventure a new forest-mountain nymph shows up at Mount Olympus Academy and tries to fit. Echo is a forest-mountain nymph and the new girl at Mount Olympus Academy. She is a little nervous, so she tries to mimic all of the gestures, expressions, and slang of...

Zeus and his friends try to free Briar, Kottos, and Gyes from Tartarus so they can finally beat Cronus once and for all in this Heroes in Training adventure. The fourteen Olympians and Ron are headed toward Olympus. Ron is telling them the rumors that the Titans have all escaped Tartarus and...

Zeus and his friends are back for another adventure in this latest Heroes in Training chapter book! Since defeating the Titans, Zeus and his fellow Olympians have taken over Mount Olympus. Things are nearly back to normal…until a stranger named Hercules shows up, asking for help. He’s on...