We've seen a ton of coloring books come and go over the years with pony. Usually they are your typical activity books with mazes and crosswords, but a subscription style book series has started up with weekly releases called MLP coloring Adventures. Each week it does the usual activity stuff, but also includes an over-arching story. Someone going by Safira sent us pictures of the entire first issue to check out. It even includes the season 4 character poster if you never got a chance at one of those.
Right now these are apparently available at Tesco in the UK if you don't want to subscribe, for 99p each.
Anyway, I'll shut up and let you all take a look yourselves below. Issue one is a story about Rarity and Twilight.