The trail heads north for some small measure before it turns abruptly towards Orussus, and then a short distance later it turns back towards the road. You've been in the forest some 5 and three quarter hours- more than half the day. You figure you're about four tenths of a mile away from the road. As it currently stands, Garret is still going strong, despite the fact that the Halfling has been working all day. Velbrik is likewise just fine, but both Jaan and Ioleta have begun to flag a little. The light is starting to fade.
OK, I had the distances and times confused somewhat in my head, but I’ve got them worked out now and on paper. If you want a detailed explanation, I can give it to you, but the upshot is that Garret has been “at work” the whole time you’ve been out (11 hours and 15 minutes), Jaan has worked one hour less (standing around when Garret searched the first time, 10 hours and 15 minutes, failed his second Con check), and Velbrik and Ioleta least of all (9 hours and 15 minutes, succeeding and failing at the first Con check, respectively.)
Jaan and Ioleta have both taken 1 point of subdual damage and are both fatigued.