Smelly Cats ron Vacation is a follow-up of Stacey's first book; 'Smelly Cats' written when she was 7 years old. Smelly Cats on Vacation is about Mack and his father's fantastic holiday in Namibia. Unfortunately, Mack comes back to South Africa with an injury. According to Stacey, Mack's injury made the family to spend more fun time together at home. Find out how Mack and Mark remained mischievous throughout the holiday, even though they were separated by distance. What happened to the girls in Smelly Cats?