The drow sargtlin had been watching Saeba Ril for several days. She had made the mistake of establishing a routine as she attempted to keep an eye on Tel'Ruid and the Outcast drow.
His ambush had been planned perfectly, anticipating her approach to the back of the Dark Tower. He didn't even have to make any adjustments at all. He simply aimed the magical crossbow and let the poisoned bolt find it's home.He heard the air hiss and then the solid thump as the bolt hit. He saw Saeba Ril fall from the horse like a bag of salt.
He waited a few minutes and moved forward from the shadows of the trees. He felt for a pulse at her neck. There was none. She had died between the sturrip and the ground.