A secret message thrusts Lucy, Sherlock, and Zoe into a high-stakes symphony of danger. Will they decode the mystery or face the music of their most cunning adversary yet?
1899, Milan: The stage is set for a melodious mystery as Zoe Rosario, Lucy’s mother and the epitome of elegance, becomes the unlikely messenger in a deadly game played by the Black Hand gang. The blue envelope she carries will send a new challenge to Lucy James and Sherlock Holmes, with a coded message that sings of secrets and danger.
Lucy and Sherlock learn they must outwit a ghost from the past, conducting a vendetta that threatens to crescendo into catastrophe. The plot thickens as Zoe goes undercover in the grandeur of the London Orchestra.
With each deciphered note, they inch closer to a foe bent on turning Holmes’s legacy into his downfall. Against a ticking metronome of malice, can our trio orchestrate a finale that saves their lives?