Everyone knows Dr. Watson is Sherlock Holmes’ right-hand man—so when he goes missing, it’s a shock. Even Sherlock hasn’t, well, the slightest clue as to where he could be. Enola is intrigued, but weary; she’s still hiding from her older brothers—and getting involved could be disastrous.

But when a bizarre bouquet shows up at the Watson residence, full of convolvulus, hawthorn, and white poppies, Enola must act. She dons her most discerning disguise yet to find the sender—and quickly, for Enola knows the blossoms symbolize death!