"Ow! Hey! Grr..." Aiden couldn't sense her chakra nor heat around the area. "Damn..." He did a summoning jutsu, showing a little green demon with a spoon of flaming coals. "Ukobach, track her." The little demon Ukobach cackled and bowed. It took a deep breath, taking in smells from long distances. It pointed to a direction and Aiden smirked. "Ember, I might not be able to track you, but hell can."
[Fun facts: Ukobach is a hell demon that stokes the fire and keeps throwing in coals to keep it burning 8D ]