0 
Oscar and Kate decide to be pet sitters for the summer. They call their brand-new company OK Pets–"O" for "Oscar" and "K" for "Kate." They have everything under control–for a while. Then things start going wrong. And they are definitely NOT OK!
This is a humorous Hi/Lo series for struggling readers aged 9-14.
Good Boy the dog loves, loves, loves balls! There are plenty of dog toys at Good Boy's house. So why aren't there any balls? Lexile: 450
Oscar and Kate get a new customer, Pat. She has a fish named Odd and a cat named Even. And Pat just has a few other chores for the kids to do. Lexile: 460
Oscar, Kate, and their mom visit the ranch of an old family friend. They're looking after the ranch animals during their visit. So they're pretty freaked out when the animals vanish! Lexile: 460
Oscar's classmate Gus starts a rival pet-sitting service. Oscar worries that Gus will take their customers. So Oscar says "yes" to every job. Kate thinks it's too much. But Oscar tells her, "We've got this!" Do they really? Lexile: 460
Pup is a cat who acts like a dog. He's wildly popular on social media. So Oscar and Kate are thrilled to get a call to take care of Pup. But Oscar worries that Pup isn't happy. Lexile: 490
