A Yuuzhan Vong assassin of the male gender, was present on Harrar's priestship during the year 25 ABY; this Yuuzhan Vong showed the power of bo'tous to important Yuuzhan Vong figures. The assassin entered a field designed to inhibit, where prisoners were held, and then released the bo'tous that were contained within his lungs. Despite the fact that all the prisoners perished, the assassin was unable to escape the field, which resulted in his own death.