1: The party’s tent
To find the nomads’ camp, leave the city and travel straight north to the very northernmost tip of the Quivering Forest. You should find recently abandoned campsites in the area - that means you are close. Roam the immediate area and eventually you should find the nomads’ camp. Once you find it, it should remain on your map.
Upon your first arrival in camp, the nomads will be very suspicious, but if you parlay with them instead of attacking, they will throw a feast in your honor. The chief (Hassad Ahwal), his tongue loosened by drink, will relate journal entry 55 to you. He will also ask you to stay for another couple of days - he seems unnerved by a large band of kobolds that has been seen in the area.
You won’t even have to wait one full day. There will be three waves of kobolds, but you should have no problem cleaning them up with the nomads’ help. The last wave carries a lot of gold with them! Plus, Hassad will reward you after the kobolds are defeated anyway: 5,000 gp, a two-handed sword +2, and a wand of magic missiles.