As Jeffrey Thomas says in his introduction to Worship The Night, there is "a kind of loose theme at work in these stories -- the notion of deities, hereafters, or otherwheres beyond the mortal plane."
"The Lost Family" takes place in the Hell of Thomas' cult novel Letters From Hades, while "Counterclockwise" (set in his acclaimed milieu of Punktown) offers a glimpse into an alien belief system. "The Holy Bowl" invokes that tastiest of deities, the Flying Spaghetti Monster. "In Limbo" (selected for Volume 1 of The Year's Best Weird Fiction) finds a man poised at the dismal way station between damnation and salvation. The protagonist of "About The Author" believes she has summoned tormenting entities from the netherworld. "The Strange Case of Crazy Joe Gallo" and "Children of The Dragon" pay homage to Lovecraft's Cthulhu Mythos. Finally, the main characters of the novella "The Sea of Flesh" face evil both in our world and within a mystical alternate realm.
You may be a doubting Thomas, but soon you will be a believer...in horror.