The Squeak of Might: adorable fluff ball, Bill summons the Spirit Beast of someone else, a dangerous Tar Dragon. With Fangbone’s help, Bill realizes how cool the Squee-Claw is – clever, loyal and unrelenting – and together they rescue the class and send the Tar Dragon back from where it came.

Drool unleashes his most diabolical curse, the MO-AR GO-AT – turning everyone, including Bill’s Mom, into goats! Drool gives Bill an ultimatum – he’ll give Bill the anti-goat if he hands over the Toe. Bill is stuck between a goat-mom and a hard place, until he realizes that there’s a way to out-goat Drool and save the ones he loves.

When Fangbone has an awful toothache, Bill discovers Fangbone’s greatest fear – dentists! But when Bill and the other classmates all get transformed into teeth by the horrific Toothsbane, Fangbone must find a way to face his fear and turn the tables on this toothy menace.

On an overnight trip to the museum, Fangbone and Bill discover a Skullbanian relic that transforms a mural into a gateway to a Skullbania-like world. It’s exactly what Fangbone needs to cure a bout of homesickness! But when a Razor-worm escapes into the museum and cocoons his classmates, Fangbone faces a tough choice – to save his friends he must smash the relic and lose this connection to home forever.

When Bill puts on the cursed Helmit of Duling and grows to be too large and incompetent, Fangbone's forced to save him and the Toe.

When Bill convinces Fangbone to stay inside all day watching movies, Fangbone comes down with Hovelfroth, a barbarian affliction that turns him into a wild animal.

Bill's got the perfect gifts for his mom's birthday, but it all goes terribly wrong when Drool's Feather-Phoenix attacks, forcing him to choose between saving the Toe and saving his mom's birthday gifts.

When Cid shows up to steal the Toe, Fangbone and Bill capture her, only to discover that the Shadowsteppers sent more thieves to finish the job.

After Bill accidentally melts Fangbone's most precious sword, he lies about it and accidentally summons the Hound of Hounding, a Skullbanian demon dog.

After Fangbone and Bill discover Cid living in Cavebania, Drool sends his DIRE RAZORWORM to devour them all.