This is a review of the UK edition published by Hodder and credited to the fake author name of Lucy Daniels. In America, Scholastic published the Animal Ark Pets series under the fake author name of Ben Baglio. The real author was Sue Welford. At least the illustrator's name wasn't hard to figure out -- Paul Howard.
Most of the Animal Ark Pets books blur together in my mind, and this is one of them. The plot is similar to Cub In the Cuboard, one of the Animal Ark books, but not as sinister. This one is a more relaxing read.
It was nice that the feature animal this time, Frisky, is a Russian dwarf hamster. They are hard to find in fiction. Usually, if a hamster appears in fiction, it's a Syrian or golden, such as Stephanie Plum's hamster in the best-selling definitely-not-for-kids mystery series. There was some nice information about caring for hamsters, but not much, since the jumble sale plot takes over.
At the beginning of the book, there were two nice, subtle messages about preventative health care for cats -- getting them their jabs, and spaying. There is a much less subtle, but entertaining, message about keeping your pets indoors if you know people are going to set off fireworks that night.
This is another book that really benefits if you read Puppy Puzzle first, just so you are familiar with the main characters, and learn a bit about Blackie.