ladyofastolat | Doom of a different kind

I'm at work today, alone in the building. I've posted before about the strange noises from the roof, which I've explained away as rooks doing clog dancing. Well, a few minutes ago, there was an incredibly loud rhythmic metallic thumping, that grew louder and louder and more frenzied, and was followed by an explosion of corvid screaming, an almighty groaning sound from the whole building, and some claw-like scampering.

Now, I've seen l those videos of super intelligent crows, and I've also seen clips of clever squirrels on assault courses. All I can conclude is that the rooks and red squirrels from the neighbouring line of conifers have combined with the zombies from the nearby graveyard. What I heard was their final rally under their charismatic leader, after which they will depart to bring all of England under their dread rule. So if you don't hear from me again... Hold on. What's that scratching at the door? Must inve