Saeril looked to the wizard when Bilbo told the group that there was something else lurking around in the wood. "What form did it take? Like a bear?", Gandalf asked the Hobbit, making sure he knows what he thinks. Unlike the others, she didn't express any stiffness to her. Plus, she did notice Kili tense up next to her with a hand clenched to his sword. Between her and Gandalf, they knew what creature the Hobbit was referring to.