...Not the worst, either! Moorcock never seems to write very long works. Even by his standards, this seems quite short, and yet he covers a great deal of ground therein. I am not an unequivocal admirer of Moorcock. His books, invariably, are odd. As I type, I listen to his album (New World's Fair), also odd. Usually his books are thick with outlandish imagery (the various Eternal Champions, for instance), though they're not necessarily particularly strong on plot & story. When I finally got around to reading his most famous series, the Elric books, I found them quite disappointing.
However, having read much of his work; Erekose, Corum, Hawkmoon, Elric amongst others; this is one of his oddest. Forget the acid-trip imagery, there's none of it here. It's a very plausible lateral interpretation of the bible stories of christ (one that's likely to be unwelcome to the devout, I might add!), and, for all it's brevity, a thoroughly absorbing read. Langford's review should tell you all you need to know of the plot to get you interested, hopefully this will provide any extra impetus you need to actually read it - it'll repay your effort.