Two sisters must put their differences aside in order to survive the ultimate challenge in the finale of Tom Palmer's action-packed Wings trilogy. It's the last day at football summer school.Jess is moving in for an easy shot on goal when the roar of a fighter jet nearly flattens her with shock.For Maddie, it's the final straw. Once the sisters were the best of friends, but now tensions between them are at fever pitch. Can Jess and Maddie join forces again to survive a challenge that will test them to the very limit? Particularly suitable for readers aged 9+ with a reading age of 8.