We're located abreast the tower, so almost at the top of the Lake. The characters taking the lead might stumble into a few blocks of sandstone, clearly shaped by human hands. If they examined them closely the might find some strange markings on them (it's in Tevinter, too bad Ariadne isn't in this group hmmm), but only a someone with a very sound education would recognize the language.
Any characters taking a detour slightly inland further to the west might (literally) stumble onto two bodies laying under a bush, a man and a woman both in light leather armour. There are no signs of what caused their death, and they have no packs.
Anyone close to Emil in the lead would hear the same sound he did, and if they scouted ahead, sneaking in the bushes, they'd hear someone moving about. Sadly the bushes are so thick they cannot see anything. What or who it is will be revealed next round.