Warriors: The Prophecies Begin is the first story arc in the Warriors juvenile fantasy novel series about anthropomorphic feral cats. The arc comprises six novels which were published from 2003 to 2004: Into the Wild, Fire and Ice, Forest of Secrets, Rising Storm, A Dangerous Path, and The Darkest Hour. The novels are published by HarperCollins under the pseudonym Erin Hunter, which refers to authors Kate Cary and Cherith Baldry and plot developer/editor Victoria Holmes. The sub-series details the adventures of the housecat Rusty, who joins ThunderClan, one of four Clans of feral cats living in a forest which adjoins the human town in which he originally lives. The arc's major themes deal with forbidden love, the concept of nature versus nurture, and characters being a mix of good and bad.