User blog comment:Shadewing/Who is the fourth apprentice?/@comment-70.58.184.30-20110720224540

This is SpoofDarklion44, too lazy to log in. :P

My theory is, there's the obvious Jayfeather, Lionblaze, and Dovepaw, but I heard a spoiler that there needed to be a fourth cat (spoiler for Sign of the Moon). So I think it's Cinderheart. She does, after all, show signs of possibly being able to read Lionblaze's mind...