The Betarrinis and the boys they love are back with these two novellas that follow Waterfall, Cascade and Torrent. In Bourne, the story picks up right where Torrent left off ... Find out what has happened to wounded warriors returning from battle, to the Betarrinis, fighting for the men who've captured their hearts, and what will happen to them next ... A year later, in Tributary, Lia struggles to overcome the fear that constant battle has heaped...

At the moment when Mabel wins Waddles the pig at the Mystery Fair, Dipper ruins his chance to impress Wendy. But when Dipper finds a way to travel back in time and changes his fate with Wendy, Mabel's fate also changes--for the worse. Then, when a prehistoric creature snatches up Waddles, it's up to the Gravity Falls gang to save him.

Jack and Annie travel back to nineteenth-century Ireland to inspire a young Augusta Gregory to share her love of Irish legends and folktales with the world.

Blendin Blandin is searching for the legendary Time Pirates' Treasure, and he needs Dipper and Mabel's help... and yours, too! Journey through time and explore the dragon-infested medieval era, the Weird-and-Wild West, and the laser-and-giant-baby-filled future. YOU choose from multiple paths that lead to different wacky adventures! You might end up finding the greatest treasure ever known, or you could send the twins and Blendin into an abyss from...

The Bad Guys find themselves sixty-five million years in the past where they must avoid being eaten by dinosaurs, fix their broken time machine, and get back home before an evil alien destroys the world.

In rhyming text, a group of happy green peas celebrates the special holidays of each month, and the passing seasons.

Alex and his sisters travel back in time to the Chicago World's Fair of 1893, where they work with young Harry Houdini to track down a thief.