Space craft start disappearing, but the authorities can't figure out why, who or what is behind this. There is much fear in the Glaceons family, especially as the eldest son is now a qualified interstellar pilot and regularly traveling through space. Ed and Paul are once again thrown into the thick of things, what is it with these two and disappearances, last time it was their dad. Can they solve the mystery and even more important can they save the lives of those who disappeared along with the space craft. Dare you join Ed and Paul as they try to solve the mystery of The Invisible Foe. Not suitable for under 12's as some romantic elements.