As someone who had to lead the Zaputa tribe out of its darkest days, Hans wasn't someone easily cowered, but the emergency sound transmission that he just received made it impossible for him to remain impassive.
Even though he tried to take their crazy smiles in a light-hearted manner and thought of it as nothing more than a vain attempt to break their spirit, it unsettled him nonetheless, and now when he realized that there really seemed to be an insidious plan at play, the thought of going back and killing all of them instinctively spawned in his head.
However, the disappearing view of the little pagoda merging into the horizon made him give it up as quickly.