A locked room. A missing box. Two identical scarves. And one misplaced key.
Celebrated soprano Ellen Landini gathers a carefully chosen circle of guests at a secluded California estate. Each has a connection to her past. Each has something to conceal. And Ellen has decided that one secret, buried for decades, can no longer remain hidden.
Before she can reveal the truth, Ellen is found murdered behind a locked door.
Charlie Chan soon discovers that nearly everyone in the house has a motive. A former husband is hiding a financial dispute. Another carries the bitterness of a ruined career. A physician refuses to reveal what he knows. An old friend guards Ellen's final instructions. And somewhere within the estate lies a missing gray document box containing evidence someone was desperate to possess.
The clues seem deceptively simple: two nearly identical silk scarves, an abandoned service passage, a little dog named Trouble, and a household key returned to the wrong hook.
At the center of it all is Ah Sing, the estate's longtime steward and Keeper of the Keys, whose meticulous habits may reveal the one mistake the murderer never realized had been made.
With Lee Chan and Birmingham Brown at his side, Charlie reconstructs Ellen's final hours and uncovers the forgotten story of Amelia Bellini-a woman whose fate still binds the suspects together decades later.
But knowing why someone might kill is not the same as proving who did.
Every clue has been there from the beginning.
Only Charlie Chan can put them together.
This 2026 Collector's Continuity Edition completely restructures and expands the original 2023 release into a fair-play, screen-style Charlie Chan mystery featuring visual clues, competing suspects, red herrings, ensemble investigation, and a classic final gathering in which every overlooked detail finds its place.