Ayla and the Tests is the fourth Phase story written by Diane Castle. It covers the period from September 25 to November 23, 2006, and is preceded by Ayla and the New School and followed by Ayla and the Networks. Main themes are Ayla becoming more acquainted with his powers and the reality of being a mutant, and a frequently target of bullies. Its eight chapters are almost stories in themselves, and are thus named: