The imaginary veterinary

Ten-year-olds Pearl and Ben, continuing their apprenticeship at Dr. Woo's Worm Hospital, discover that Dr. Woo and the sasquatch are both sick with Troll Tonsillitis, and they must travel to the Imaginary World to find the only cure: a griffin's feather.

As Ben and Pearl try to convince a dragon to return Buttonville citizens their things, which he stole, an emergency call from the Imaginary World comes in warning that the rain dragon has been injured. Dr. Woo is out, and Mr. Tabby is unavailable--it may be that Ben and Pearl will finally get to go to the Imaginary World and see where all Dr. Woo's strange creatures come from.

Ten-year-olds Pearl and Ben find excitement in the small town of Buttonville as they encounter otherworldly animals, including a lake monster, during their first official day as apprentices to Dr. Woo, a veterinarian for Imaginary Creatures.

Ten-year-olds Ben Silverstein and Pearl Petal are tasked with catching a swarm of escaped sugar fairies before the poacher Maximus Steele does.

Spending the summer in his grandfather's rundown town, ten-year-old Ben meets an adventurous local girl and together they learn that the town's veterinarian runs a secret hospital for imaginary creatures.