"I'll bring my laptop tomorrow and we'll plot it all out.  We're tampering with dangerous forces when we move the ley lines around, and, like I said, if we seal the rift before we rescue any survivors, we've condemned them to never return.  There's a certain amount of math involved, but we should be able to solve the puzzle fairly swiftly."  Matt finishes with the notes and looks up.  "Of course, someone destroyed or altered them in the first place, and that agency is likely to try and stop us."