Inamar's eyes focus in and she starts to see sparkles of magic in the entryway. The reed mat definitely, the vines holding the curtains, the platter on the table, and the stick near the fire. The sparkles are a shifting array of colors, changing magic you think (transmutation).
Weylan's quick circuit does not reveal recent activities, but he thinks he spies vents that indicate there are underground chambers. At one point while checking it out he thinks he hears a thump from below.