Query: Series of Children's books that are Novellas
Domain: books
Relevant documents:
Sir Harold and the Gnome King
The Short Second Life of Bree Tanner
Bloodstained Oz
Evidence from documents: Sir Harold and the Gnome King: '''''Sir Harold and the Gnome King''''' is a fantasy novella American writer L. Sprague de Camp, part of the Harold Shea series he originated in collaboration with Fletcher Pratt and later continued with Christopher Stasheff.
The Short Second Life of Bree Tanner: ''''The Short Second Life of Bree Tanner''''' is a novella in the ''Twilight'' series by author Stephenie Meyer.
Bloodstained Oz: ''''Bloodstained Oz''''' is a ''Wizard of Oz'' related novella by Christopher Golden and James A. Moore, and it was illustrated by Glenn Chadbourne.