Tir takes wing at Mahe's command flying quickly up and west, following the flying creature. After waiting for a while you all start to move again, Mahe confident that Tir will return once he has found anything. Most of the next day is spent in quiet or atleast the forest is quiet. It is quite late in the day when Tir returns to Mahe.
Communicating with your companion (I am assuming that the druid's link would give atleast the following information. If not thats okay.) you find out that the creature was a humanoid with dark purple bat wings. Tir never got too close to get a better look as the evil aura around the creature was almost palpable to the eagle. For several hours Tir followed the creature directly west. Tir stayed as close to the tree line, often diving below to evade its sight. But the creature never looked back. As the sun began to move towards the tops of the mountains the creature dropped down into a clearing. Tir circled once spotting several humanoids gathering around what looked like a tall pointy stone. Several other auras were visible in the trees outside the clearing, but Tir's reconnaisance was cut short when one of the armored individuals looked up straight into the sky at it. The winged individual immediately took to the air, but Tir was much faster.
The clearing would be about four hours away by Tir's wing (about 6 by horse or 8 by foot). If they followed him they might be close.