Blood Red Horse is a 2004 young adult historical novel by author K M Grant. The book was published in 2004 by Puffin Books and in the US in 2005 by Walker Children's. Blood Red Horse is the first novel in the De Granville Trilogy and was followed by the books Green Jasper and Blaze of Silver. In 2006 the audiobook version of Blood Red Horse won an AudioFile Earphones Award and in 2007 was one of YALSA's recommended audiobooks for 2007.