Death on the Diagonal

Readers help solve the crimes—and the puzzles—in this cozy mystery series. Wordplay’s the thing as crossword editor Belle Graham and cop-turned-PI Rosco Polycrates team up to fill in the blanks of cases that baffle the local police.

But as Belle and Rosco discover, nothing is black and white—whether they’re racing to unravel a cryptic crossword that could save someone lost at sea; ferreting out the clues to the identity of a killer in an acrostic from Belize; in Philly to help the Feds solve a mobster’s last puzzle and testament; or on a crossword treasure hunt in Las Vegas. And when violence rocks their peaceful New England town, not even their canine bodyguards, Kit and Gabby, may be able to keep them off the grid of a killer determined to bury them six feet down—and three across.