Ellen Klages is an American science, science fiction and historical fiction writer who lives in San Francisco. Her novelette "Basement Magic" won the 2005 Nebula Award for Best Novelette. She had previously been nominated for Hugo, Nebula, and Campbell awards. Her first (non-genre) novel, The Green Glass Sea, was published by Viking Children's Books in 2006. It won the 2007 Scott O'Dell Award for Historical Fiction. Portable Childhoods, a collection of her short fiction published by Tachyon Publications, was named a 2008 World Fantasy Award Finalist. White Sands, Red Menace, the sequel to The Green Glass Sea, was published in Fall 2008. In 2010 her short story "Singing on a Star" was nominated for a World Fantasy Award.