Castiel was a nervous wreck the whole flight back to Berk with Toothless, wondering what fate would befall her friend and the baby dragons. If anything happened to them she would never forgive herself. And Toothless for sure was just as stressed,if not more so then her. After all, this was his mate and his babies at risk. She could feel the strain tight under his skin as he pushed himself, getting the two of them back to Berk faster than she would have expected. And as soon as they landed, Toothless bolted for a house that Castiel knew had to be Hiccup's home. She didn't even wait for the dragon to completely stop before she slid off of his back and rushed to the door, stumbling the past for steps there. 

She banged on the door, worry in her eyes, hoping he was there, Surely he wouldn't have taken a detour and went somewhere else before reaching Berk, right? The door opened, but instead of it being Hiccup, it was an older woman who answered the door. She pushed her confusion aside for now and spoke to her, "Where's Hiccup? I need to speak to him quickly! Please!"

The woman seemed a bit surprised at the girl's hast and worry and called Hiccup's name, moving aside for the girl to come in and seeing Hiccup coming down the stairs, she rushed over to meet hi at the foot of the stairs, "Hiccup! Please! You have to help! S-some man came to the cave! He had some kind of giant dragon with him! Aurora's gone! She..she just attacked Toothless and followed them! It was like she didn't even realize what she was doing! And-and the babies! They went with her!" It was obvious she was in a panic at th possibility of loosing her friend and the baby dragons.

By this time, the older woman, Valka, stepped up, "Drago. Should have known he would try something else. I just didn't think it would be so soon."

So, they did know who this man was. Castiel looked at Hiccup worriedly, her eyes pleading with him, "Please Hiccup....we have to get her back...."