This sudden voice, although very eerie, did manage to perk Joel up.
He figured out that the voice was coming from above, probably from a tree, so he reached out to touch the trunk and climbed with all his might. He quickly managed to ascend the tree.
"Where are you? Show yourself! Come out!"
However, once he was up in the tree, he didn't know where the voice had come from. His vision and sense of smell were both obstructed, the thick fog and the smell of barbecue making it impossible for him to rely on his senses to pinpoint the exact location.
He needed the other party to continue making noises, only then could he determine their location from the source of the sound.
"Are you looking for me?" The voice of the little girl seemed to come from below the tree this time.
"Ah!—" Without a second thought, Joel acted on his first instinct, darted towards the source of the sound, and jumped off the tree.
