rukh sneak fight

And as the blaze of blasterfire and Grysk lightning guns lit up the corridor, Kimmund spotted the slight bubble of distortion as a cloaked figure slipped from the Darkhawk and traveled, unnoticed and unhindered, down the corridor. The aliens' defense formation began to unravel from the rear as Rukh began working his way up the lines, taking out the Grysks one by one. Nearly half of the enemy was down before those in front even noticed.
By then it was too late. Between Rukh at the rear and Drav and Jid in the front, the whole defense disintegrated.

Thrawn: Alliances, Ch. 20, pg. 312