When Harvard University English professor and dyed-in-the-wool romantic Gilbert Reedy is murdered, Lizzy and Diesel take up his quest for the Luxuria Stone, an ancient relic believed by some to be infused with the power of lust. Following clues contained in a cryptic book of sonnets, Lizzy and Diesel tear through Boston catacombs, government buildings and multi-million dollar residences. Diesel’s black sheep cousin, Gerwulf Grimoire, also wants the Stone. Never far away and always watching, Grimoire has a growing, vested interest in the cupcake-baker-turned-finder-of-lost-things. As does another dark and dangerous opponent in the hunt – a devotee of lawlessness and chaos, known only as Anarchy.