Their last battle ended with death and despair, but they have no time to mourn. One of their own has been taken and the Quinae Praesidia set out to find and rescue her. In this third and last installment of the five series, the Five discover new powers, make a desperate run through the Netherworld, land on an island paradise . . . and find that Brone, always a step ahead of them, is becoming more powerful than ever.