Layna keeps a steady pace, occasionally pausing to cock her head to the side, as you move past the storage room into the southern reaches of the first level. The kobold tracks came from the north and are conspicuously absent as you sweep through the remaining rooms--leaving the scorpions be. Something has consumed the corpses of the defeated hobgoblins, but whatever it was didn't leave any distinguishing tracks.
After satisfying yourselves that you are indeed alone on the level, you proceed up the north passage, collecting the few remaining caltrops that Sikhandyn had scattered (three of them, each very close to the wall), and gather in the empty room near the ramp (#8) to consider the next level. All in all, the past twenty minutes were remarkably easy.