So I'm reading this on mobile, which means I can see/read only one frame at a time. I'm on the very first frame, and I'm like, "There needs to be an actual sign." And lo, in the next panel, there was. Though I'm not sure of whether it is warning me that my death will be assured, or whether there is only a specific death waiting for me.
Also than you for making the Sword in the Bone reference I was already thinking in my head.