Magnus pours over the undergrowth and, with the help of his companions, is able to find not just the two familiar foot prints, but many prints of large, heavy, crude boots, made very shortly after the first two sets passed this way - perhaps a half-dozen individuals, but it's hard to say, it could be even more.
Moving forward a ways, the dwarf finds signs of a brief struggle - underbrush torn, footsteps back and forth in the area, dark patches in the mud that might be blood - and going north from there, Magnus sees only the heavy, crude prints. Given that there are no signs of burial or of humanoid remains, it seems that the first two travelers must have been carried north as captives from that point.
OOC: Skill challenge successfully completed! Sorry for the delay, I've been really busy this last week. I'll post another update Sunday night moving to the next scene, but feel free to speculate as to the above info, and roll any further checks you might want.