Andi Boggs and her best friend Colin Carter are at it again ... in this third book of the Andi Boggs series, Andi Unstoppable , school has begun for the two Killdeer middle schoolers and the science teacher has a great idea He is an expert birder and wants his class to share in the fun. In a birding group with Colin and her biggest school rival, Ava, Andi sets out to be the first student in class to spot the elusive Kirtland warbler but ends up spotting...