Besides sounding like lyrics from the greatest death metal single never written, this quote makes Glass seem like a vengeful ghost, risen from the grave to finish up some earthly business. As we'll see, this metaphor gets used a few times throughout the novel.

Once again, we see Glass utilize skills gleaned from the Pawnee to huge effect. What was once a time-waster for kids is now a lifesaver for a desperate man—funny how things work out, huh? This also shows Glass's strong capacity for improvisational thinking.

Sometimes suffering can be useful, like when it teaches you a lesson. And what type of lesson, you ask? Well, lessons like "don't eat clearly rotten bone marrow, or you'll end up buying yourself a one-way-ticket to vomit town." That's a pretty good one, if you ask us—and not one Glass will soon forget.