Love Between Riders

Takes places soon after the Red Death is demolished by the teens and their dragons and progresses on in time. Things start to happen between Astrid and Hiccup after a day at the cove. On the way back to Berk, they find a stone structure in the middle of the forest, and they find out it's a gate. After an attack, Hiccup is thrown into the portal at the gate. Astrid goes to save him, but can the two get out? Can love provail over the ominous evil that lives inside the gate? Twists and turns in there ;) (I do not own these character. All rights to DreamWorks)