Neverwinter Forest ’Til the last joint has shut down

So, he was lightly stumped. Well, time to use a hint charge and tell him how the puzzle worked... Still, he was happy so far Caerus was doing a good job being inquisitive and stuff. You can use smells and your eyes. There could be a track that points the way. If you don't see one, then you can follow the track in both directions. Which side smells newer? Does one smell older? The more you practice, the faster you can spot which is the way to go. But he was gonna let Caerus do the dirty work -- he was old enough that giving him the instructions would be good enough. Mal didn't consider him stumped enough to need help.