Kingdom Hearts, Part Three: Endgame is the eighth and final official story in author William Raymer's Chipmunk Tour Saga series of stories (and the third and final installment in the three-part series-ending Kingdom Hearts trilogy). Writing on this story began and ended in 2009. It is a cross-over between Alvin and the Chipmunks and nearly every TV show or movie series encountered in the entire Saga. This story also marks the first significant appearance of Studio Ghibli Sentai Ohranger (later Ghibli Sentai Yumeranger) since A Goofy Wedding: The Ultimate Disney Fanfic.