Tenebrous Flow

In the oppressive summer heat, Alex Mercer's only escape is the cold rush of his shower. But when a phantom touch in the cascading water turns into a predatory caress, he discovers something ancient and intelligent living in the pipes. His desperate flight from his haunted apartment only leads to a more terrifying truth: the thing in the drain isn't bound to the building. It's bound to him, and it will follow him through any water, anywhere.