looking around a bit more, it appears the assassin did in fact give you the slip somehow... those thugs provided just enough distraction so that he could slip through your fingers...
Kale lets out a loud howl of defeat. "Curses on his kin! See what happens when evil fights from the shadows instead of standing up and fighting like men?!?" He kicks the wall with a booted foot, gasping in pain and clutching his toes. "Damn it! Let's get back to the palace!"
"Where are the formal guards anyway?" asks Sonrik in his frustration. It is indeed out of his character to blame others, but his sense of helplessness is apparant.
"Aye." he responds, "let us get back ,and quickly!"
Rak don't say anything. but anyone that sees his face know how angry he is. He turns around from Kale and kicks a little stone in frustration, making a lot of noise when the stone hit some metal crates.
He then quickly runs out of the building and set his curse towards the place he for the last time saw the Doombringer.
The group gathers around the rogues who are, even now, waking up from their defeat at your hands. The female thug wakes first and glares at whoever makes eye contact with her. "Let us go!" She demands.