A shiny penny for who can guess what the title is an allusion to.

Ok...not my penny. I'll kill for my penny.

But anyway, for much of this to make since, you will have had to read the story here  MultidimensionalChaosAndTacos, and you will have already figured things out when they come up in that story too. There are a few things that happen in this new thing that are directly related to the last...given that it takes place almost directly after MuDCaT ends.