Looking at the area the Dragonite had led them to, it seemed obvious that even if Evan COULD have gotten up after all of what was known happened, the footprints around the 'imprint' meant that those people, and apparently a Skarmory from what he heard from Alistair, had gotten here before their group did either way.
"Well, if they took him, we go get him back. A simple choice of action, but the only one available to us, no?"
"Seems that way. Whether someone else has him or not, he defidently shouldn't be moving around in such a condition. And if these people are as threatening as they're described... Well, that just gives us more incentive."