Even after Valen call no one answered, though Valen remained vigilant, his hand on obsidian coloured hilt of his precious sword waiting for any slight movement, ready to counter.
But even after waiting for sometime nothing happened, Valen still on guard started to check, only to find no clue of some following them, but he was sure that someone was here—watching them.
After searching throughly and confirming that no is present he dropped his guard, after which he checked for any other clue which can help—although he found none.
So he cleared everything, and then returned to his chambers after parting ways with Aylara, the situation was unlike he imagined—moreover nothing of sort was mentioned in Echoes of Eternity, meaning now everything is off the track of the original story.