"One of the best storytellers in the business." - Brian Keene

A new novel of gripping terror from the author of Missing White Girl.

Within the caves of a small Texas town lies a pool of strange, luminescent water. Twenty years ago, three teenagers were inhabited by a malevolent force living in the caves. Now, they've returned to the site as combatants in a supernatural war that flows through the raging currents of the world's rivers.