Jade Fern Grove the source of terror

When he put one and two together, he got the end result she desired but had yet to achieve in discovering: three. In plain English, to find their third piece. She was certain that Alya felt as incomplete without them as they felt now, and it was not one Hydra wanted to endure any longer. At his inquiry, Hydra gestured toward the opposite direction that they were heading. After all, if Alya was not where they went, perhaps she would be where he did. They needed the ground to be covered. 

She is scouting, but does not take well to being caught by surprise. If you see her, approach with caution, she advised. Even if Alya was injured, Hydra would think that would make her all the more hostile to strangers... and it would be best if Alya was aware of her company in any case. We're heading that way— Hydra gestured toward the path they would be taking. Just to be certain she did not get turned around.