Bonus: It is no singing bird that greets Solas in the early hours of the next morning. It is Seeker Pentaghast screaming in front of the little house he inhabits.
He has been awake for some time and his guest is gone. Not too long ago Lavellan had left, so when Cassandra bursts into the door there is no questionable circumstances she can find the apostate in. The herald sleeping in his bed (even with him not in it and having chosen the floor) is not a good look. Without knocking Cassandra comes in. Rude but expected.
"Apos-... Solas, have you seen the herald? ", she starts and Solas raises an eyebrow.
"You have lost the chosen child?", he asks only a bit of amusement in his voice. Cassandra's eyes become narrow.
Then a soft voice from behind her says: "Are you looking for me? I'm terribly sorry. Nature called, haha... I probably don't take the heavy food here too well", Lavellan says and looks into the door and gives Solas a small good morning nod, before Cassandra takes her to talk about something important Solas guesses and he resumes to his book.