Magical Heist and Murder

In the desert, a cold wind woke me up. When I opened my eyes to look, I was startled and thought in my heart, Alas! Why am I lying in the desert? I looked at it, damn! I'm not the only one lying here, there are dozens of people around me. Look at myself, and then look at those people who haven't woken up yet. They all have unkempt hair and tattered clothes. I don't know what happened to me and this group of people. At this moment, I don't have any memory in my head.