It seems like someone at the office must have accidentally ripped open a portal that leads right to Cthulhu's front door. How they managed this, we have no idea. We are way out of our depth here in dealing with eldritch horrors, so we've come to the conclusion to not disturb Cthulhu, and proceed with work as normal.

And hey, it looks like Cthulhu has made friends with... a yellow line? Everything should be just fine.