As we get closer and closer to the April 4 release of Captain America: The Winter Soldier, Marvel is releasing several children's storybooks to get younger fans ready for this Phase Two adventure. We have a number of photos from Captain America: The Winter Soldier: The Secret Files, Captain America: The Winter Soldier: The Movie Storybook, Captain America: The Winter Soldier: Rescue at Sea, Captain America: The Winter Soldier: Falcon Takes Flight and Captain America: The Winter Soldier: The S.H.I.E.L.D. Report, all of which go on sale tomorrow. These images do reveal a few spoilers from the upcoming Marvel Phase Two sequel, so check them out below at your own risk.