A vivid, scary fantasy adventure about sinister bionic Tankermen who take people prisoner and pump poison into Sydney's drains.

Finn thinks he has trouble enough, hanging out alone on the streets of Kings Cross, until he stumbles on sinister figures pumping vile-smelling sludge into the drains. Then his life starts to get seriously weird.

Who - or what - are these Tankermen? How can they disappear into solid rock?

What Finn faces when he follows the Tankermen into their hideout is horrifying beyond his worst fears.

This is a gripping fantasy adventure, written with style and assurance by the author of WildGame and Walking through Albert.