The Jungle by Conrad Williams
As chapbooks are so short (typically 8 - 18 pages), to give a storyline would spoil the thrill of this spine-tingling tale!
Conrad Williams has won the following major awards:
1993 British Fantasy Awards (best newcomer)
2007 International Horror Guild Award (best novel) for The Unblemished
2008 British Fantasy Awards (best novella) for The Scalding Rooms
2010 British Fantasy Awards (best novel) for One
He also edited the anthology Gutshot, which was shortlisted for both a 2012 World Fantasy and British Fantasy award.