Twins Esmeralda and Atticus Fetch are the best pet finders in Thorns Hollow - a town where people have a lot of pets, and those pets often get lost. But when a lost dog leads them to an old, Victorian house on the edge of town, the twins find their world turned upside down. This creepy house contains a portal that leads to a whole other world - a world where mythical creatures like trolls, fairies, and dragons are real.

An abandoned house at the end of the block. A mysterious girl in an upstairs window. A strange black SUV lurking around every corner. When Nick and Tesla Holt are sent to live with their eccentric Uncle Newt, they find their new neighborhood is full of secrets. What the heck is going on? To unravel the mysteries (and save their skins), Nick and Tesla must use everyday household objects to build electromagnets, rocket launchers, and other crazy contraptions.

Sassy and Waldo are good dogs. They spend the day keeping their house safe. Has a squirrel ever gotten inside? No! But every day their boy, Stewart, comes home from this terrible place called school smelling like anxiety and looseleaf paper. Sassy and Waldo decide to save Stewart. But they don't let dogs into school. So Sassy and Waldo decide to get creative. They put on an old trench coat, and now everyone at Bea Arthur Elementary thinks they are a new student named Salty from Liver, Ohio. Well, everyone except Stewart.

Pip is a girl who can talk to magical creatures. Her aunt is a vet for magical creatures. And her new friend, Tomas, is allergic to most magical creatures. When things go amok - and they often go amok - Pip consults Jeffrey Higgleston's Guide to Magical Creatures, a reference work that Pip finds herself constantly amending. Because dealing with magical creatures like unicorns, griffins, and fuzzles doesn't just require book knowledge - it requires hands-on experience and thinking on your feet.

Billy Broccoli is new to the neighborhood, and wants cool friends and a spot on the baseball team more than anything. But the one thing he never wanted is his own personal ghost. So imagine his surprise when he ends up sharing a room with Hoover Porterhouse, a funny ghost with a whole lot of attitude.