My Little Pony: Friends Forever — IDW Publishing
Issue: #35 RI
Twilight Sparkle and Starlight Glimmer tidy up the library in the Castle of the Two Sisters. What begins as a friendly activity soon turns into magic-based battle of egos and starts to transform the castle into a very dangerous place!
Creators: Bobby Curnow, Heather Breckel, Neil Uyetake, Rob Anderson, Nidhi Chanani, Jay P. Fosgitt, Tony Fleecs
Characters: Starlight Glimmer, Twilight Sparkle, Owlowiscious, Star Swirl the Bearded, Spike