Ruby's Misadventure

Can Cassie and her friend help a cat by finding the cause of her illness?

Cassie and her friend Sarah are looking after Sarah's cat Ruby when her parents go away for a few days. Unfortunately, when they turn up to feed Ruby, she's unwell. They rush her to the vet, and Dr. Joe tells them she is very sick. With Ben and Florence in tow, the hunt is on to find out what has caused Ruby's illness before it's too late.