I picked this up on a whim, in part because of fond memories of Darren McGavin's Kolchak the Night Stalker series. As Kolchak is prominently mentioned at the top of the back blurb, one would expect him to be central to the book -- and one would be wrong. He is there, as part of a huge cast of characters, some from historical pulp radio plays and stories, others of the authors' invention.
The huge cast works against the book, as there is not much space to establish each character, give each a distinctive voice, and give ach something to do. The characters do get important roles, but the action shifts so often it is hard to care about any of them. Worse, it shifts in tone -- the back blurb makes it clear this will be a supernatural adventure -- and about a third of it takes place in a dream dimension -- which makes the shifts from relatively realistic two-fisted action to mystical combat somewhat jarring. I am somewhat familiar with Kolchak, and do not get a feeling that the authors' captured McGavin's performance. I would be interested to see what reviewers think of the adaptations of other established characters.
Worst, the climactic scene in which our heros and an ally confront the villain -- the point the whole book has been building to -- takes place off screen and is described in retrospect by the survivors over dinner. It is as if one sat thru the Lord of the Rings, only to have the scenes at Mount Doom and the Black Gate skipped on screen, and to be explained by Frodo and Sam to Rose over a mug of ale. Several of the characters, including Kolchak, are absent for the big confrontation. Those that face their own dilemna have it also end anti-climatically, as the villain's demise removes his minion's motivations.