What is the name of the publisher that releaed the book "Long Shadows"?
Long Shadows: Long Shadows is a children's fantasy novel, the fifth book in Erin Hunter's "Warriors: Power of Three", and was widely released November 25, 2008. Warriors (novel series): Warriors is a series of novels published by HarperCollins; it is written by authors Kate Cary, Cherith Baldry, Tui Sutherland, with the plot developed by editor Victoria Holmes, who collectively use the pseudonym Erin Hunter.
HarperCollins