"Lost Light" is B-level Bosch, but it has been an instant hit. Almost all the books mentioned here have turned up on at least one best-seller list, just as Mr. Coben's and Mr. Kellerman's latest are apt to do. In cases like Mr. Parker's, this is merely the writerly equivalent of having a hit television series (which he already has, via Spenser). For Mr. Brown, the more relevant model may just be "Titanic." And for Mr. Lehane "Shutter Island" is liable to have the staying power of "The Sixth Sense."