Quincy, D. M. (Diana). Atlas Catesby mystery.

"In 1814, Atlas Catesby, an intrepid explorer and youngest son of a baron, is eager to resume his world travels after a carriage accident left him injured in London. But his plans are derailed when, passing through a country village, he discovers a helpless woman being auctioned off to the highest bidder--by her husband. In order to save her, Atlas purchases the lady, Lilliana, on the spot to set her free. But Lilliana, desperate to be with her young sons, refuses to be rescued--until weeks later when her husband is murdered and Atlas is the only one who can help her clear her name. Fortunately, Atlas is a master at solving complicated puzzles and finds himself uniquely suited to the task, despite the personal peril it may put him in. But soon he learns the dead man had many secrets--and more than a few enemies willing to kill to keep them quiet"--Dust jacket front flap