Shall we just move forward regardless, assuming that Reliyian (as she probably will) agreed to get going? Traveling down the river (as the map indicates is the most efficient/easiest route, at this point) will be a challenge, as per the book: a social skill of your choice to disperse the herd animals, Notice to navigate, and Stealth to avoid the ugly areas (and more mobile threats) still between the group and the theoretical location of the nest. One character should be doing all of the rolling, but in obvious areas (stealth from Khell, for instance), characters can roll to grant a positive aspect.