Kalliope had just finished delivering the strange letter to Kalivas at the embassy. The king's party was going to be in town for one more day before they returned to Eroa, so it was fortunate that Desmond came forward with the letter as quickly as he did.
After bidding a series of long goodbyes to Kalivas, she began her trek back to the academy. There was still a large presence of people throughout the city, and they would trickle out over the course of a week or so. Most of the important people would be leaving within the next day or so.
Some people thought that Kalliope would leave the city even sooner than that, but they felt themselves sneaky enough to surpass her heightened senses. They were doing a very good job staying out of range of her hearing, however their scents lingered. If they had swapped out observers while she was in the embassy, she might not have noticed, but since their scents remained, she could pick them out.