If he were a bit more stable, Zulf would look positively exasperated at Tris and Tobias' statements. As it is, there's just a slight frown. "That's hardly what I meant." Colin distracts him then and the suggestion is a good one, although he won't blatantly say as such. There's just a nod.

"I won't make any promises about finding out in regards to that." With that said, although he doubts it really needs to be, Zulf looks back towards the group even as he reaches for one of the necklaces around his throat.

"When we were first looking for a starting point for the cure, an expedition was sent out. I heard that when they ran into one of yours, it wasn't a peaceful encounter. The four of us wanted to make sure that none of yours had been hurt, and to make sure you had access to more of the cure. Tris managed to find what was left of your camp. When we found it empty, with evidence shots had been fire at something... We only became more concerned. Well aware that we might run into whatever you had fought off or be perhaps mistaken as an enemy ourselves, we still resolved to see if we could find you. Your safety and health were still that important." He takes a breath and lets it out slowly, trying to calm his still rapidly beating heart. "Is there more you need to know?"