and things went downhill from there

I have a mug of pens that I keep on my desk, all of which have worked reliably for years. In the last couple of days when I have needed a pen, the tip has been dry on every single one of them. How can every pen go dry at the same time? They worked fine until I moved into this little office.

Couple that with the occasional whiff of brimstone, and faint sounds of screaming that occasionally wafts from the poorly-sealed portal to Hades in the corner of the office and one might be forgiven for thinking that evil afoot.

(Well, the part about the pens is true anyway.)