"Merdyn the Wild hails from the Dark Ages, revered as the world's mightiest Warlock (please, don't label him a wizard). He's been exiled to the 21st century due to his misdeeds, and he's about to stir up a heap of trouble for Rose, a 12-year-old girl.
Rose is an entirely ordinary girl, determined to mend her fractured family.
Bubbles, the guinea pig, belongs to Rose. He's known for his frequent visits to the litter box.
When Rose unexpectedly encounters Merdyn and uncovers his true identity, she quickly grasps that he could be the solution she's been searching for. Rose agrees to assist Merdyn in navigating the bewildering modern world (including important lessons like: the lidded bowl in the bathroom is DEFINITELY NOT a sink; it's a TOILET, so absolutely refrain from using it to wash your face) in exchange for a spell to mend her family.
Now, they must discreetly house him in the shed without Rose's mom noticing, recover Merdyn's enchanted staff, and devise a way to transport Merdyn back to the Dark Ages. What could possibly go awry...?"