OOC: So, as I understand it, Peladus is in his last round of nausea, which means he has just a move action available to him.
IC: "What happened?" Peladus asks, unconsciously mimicking Ngikhnit as he moves (OOC: 30ft) to the northeast, trying to spot the intruder. At Pendrake's words he looks at the crossbow in his hands, sighs, and shifts it to his left hand to leave his right one free for spellcasting.
OOC: If he sees the two creatures, and they are both in range of a Color Spray, that's what he'll cast. If he sees just one, or can't catch both in the cone of CS, he'll cast Magic Missile at one of them instead.