Knot in Time

My name is Darius Arthur Heisenberg, but most people call me Dare. If my last name sounds familiar, it's probably because of my great-great uncle Werner Heisenberg. He was a physicist who came up with something called the Uncertainty Principle. But listen, Uncle Werner had no idea how uncertain things really are.
I work for a group, called the Keepers, that label themselves the custodians of time. And, believe me, time is a mess. It needs all the custodians it can get. Which is, of course, w...