Part 4 of the international bestselling Convulsive series.

As the pandemic spreads, a sinister new danger threatens to tear the survivors apart. Lucy is discovering that betrayal comes in many forms...


Choice was an illusion from the old world. Lucy's battling to survive the pandemic, but her demons are catching up.


A shock discovery could destroy their last hope against the creatures.

In a world where fear is the new currency, survival has never cost more...

Available in eBook, paperback, and audiobook.

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