Despite some religious undertones with BAAL, it was great.. If you see a used copy somewhere, you should seriously consider picking it up. It's definitely worth the read.. Especially since this was McCammon's very first published book...
I'm about a quarter of the way through
"Swan Song" at the moment..

At an epic 956 pages, it will probably take a couple more weeks to finish, but it's hard to put down as well.....
"He is the man with the Scarlet Eye, a malevolent force that feeds on the dark desires of the countless followers he has gathered into his service. His only desire is to find a special child named Swan-- and destroy her. But those who would protect the girl are determined to fight for what is left of the world...and their souls.
"In a wasteland born of rage, populated by monstrous creatures and marauding armies, the last survivors on earth have been drawn into the final battle between good and evil that will decide the fate of humanity...."