Quicker than you can say "boo" - assuming you elongate it out by a few hours - Valve followed up yesterday's TF2 comic with Scream Fortress , their fifth annual Halloween event. This time around it's the Payload Race map Hightower that's been spookified, turning it into the corpse-pushing Helltower. Also: there are skeletons, and the mercs have magic spellbooks now.
"Everybody gets a spellbook gifted to them automatically, which you can equip in your Action Slot in order to pick up and cast spells," explains the TF2 blog . "The team that wins the race will be granted a buff for the final climactic battle, where you will fight for the ultimate Halloween reward: Your own lives . And a reward ."
Naturally, there are a bunch of items and achievements that can also be awarded, found and bought. Scream Fortress is live now, and will run the 11th November.