Reviewed by Linda C. Brinson AS CHIMNEY SWEEPERS COME TO DUST. By Alan Bradley. Read by Jayne Entwistle. Random House Audio. 11 hours; 9 CDs. $41. Also available in print from Delacorte Press. 392 pages. $25. What a relief! Or, as Flavia would shout, “Yaroo!” When I reached the end last year of The Dead…