It's not so much that Astrid truly finds everything she says to be believable, but she wants to believe it's true. Because it meant the possibility that Hiccup could still be alive, that Ruffnut and all of those seemingly innocent victims were still out there now, unharmed and safe.

There's proof in her current location as well, already having experienced items and a setting that were far beyond anything she had ever seen back home. Even traveling further from Berk on dragons, they had never come across a place that looked even partially similar to what she was seeing now.

As much of a guard that she wants to put up, nothing about this girl seemed threatening. Maybe it's due to her current temporary state of hopelessness from what she had seen on the screen, but with how horrible the state of everything was, she wanted to believe in the few hopeful words she was hearing now.

"I'm Astrid," she finally says with a sigh. She relaxes her shoulder, shifting from standing so tensely. "How long have you been here?"