My Little Pony: Friendship Is Magic — IDW Publishing
Issue: #18
'Reflections' Part 2. As long kept Canterlot secrets are revealed, the Ponies find a way into a new world. A world where things are very different, yet also very much the same! What role does King Sombra play in this world? The fate of both Equestria and the new world may depend on him!
Creators: Bobby Curnow, Heather Breckel, Neil Uyetake, Robbie Robbins, Robbie Robbins, Alan Payne, Katie Cook, Sabrina Alberghetti, Agnes Garbowska, Lorelei Bunjes, Dirk Wood, Matthew Ruzicka, Amy Mebberson, Sara Richard, Greg Goldstein, Jeff Webber, Chris Ryall, Andy Price, Ted Adams
Characters: King Sombra, The Observer, Rainbow Dash, Princess Luna, Applejack, Twilight Sparkle, Kibitz, Star Swirl the Bearded, Fluttershy, Pinkie Pie, Rarity, Angel, Princess Celestia, Spike
Story arcs: Reflections