And it only gets worse; there are things with the Mi-go that look like they were extracted from under the sea and trained to attack anything on two legs. They dash forward on spidery legs, shrieking in ranges the human ear can only half hear, jaws snapping at anything that moves.

The sun isn't quite enough to keep the sky alight; that job falls to the aurorae. The orange-red ghostlight from above illumines a great, ropy-bodied black thing that moves like a winged viper, pouring out of one of the cracks in the air. That gets the Danes' attention, more than anything else so far. "Light! Light!" shouts one of them in English, as a second winged thing and then a third slithers through. "They can't stand up to light!"

"Light, huh?" says Venkman, grinning ferally and leveling his thrower at the horrors. "Everybody duck!"