The gripping sequel to The Crystal Run - a children's novel from the Sunday Times and Irish Times No. 1 bestselling author for fans of Cornelia Funke, Susan Cooper and Philip Pullman.Runners are the privileged few. Bestowed the honour of protecting their country, Runners bring wealth and glory to their families. Yet, upon fulfilling their oath, a Runner's life must expire. A lot happened since Kaia, fastest and strongest Runner of her cycle, swore to protect her country. Risking their lives, Kaia and Joe travelled through enemy territory to replace the precious Kerala crystals that power Carcassia's protective shield. Thwarted at every step, the teenagers made troubling and frightening discoveries, threatening the safety of all Carcassians.Are Kaia's trusted and powerful leaders liars? Have dozens of teenage Runners been sent to their death for nothing but the comfort and riches of the privileged few? All their efforts in vain, Kaia and Joe are taken prisoner. They must escape. They must find out the truth, return to Carcassia and most importantly, they must prevent more Runners from sprinting to their death.