In this last written adventure, the plot unfolds with an intriguing scenario. Wealthy and hospitible Dudley Ward gathers together Charlie Chan along with Ellen's three later husbands to his large house on Lake Tahoe. After hearing his former wife, Ellen Landini, may have been pregnant when she left him, Dudley Ward is determined to find his son. There are four ex-husbands, including Ward, all of them angry with Landini, who is about to marry a fifth husband, also present, with his sister, at this bizarre gathering. Landini herself arrives on the scene to complete the madness, and is promptly murdered. Her servants, entourage and husbands all come under suspicion. "Keeper of the Keys" was the final book written by Earl Derr Biggers before his passing a year later.

• We started tracking this book on January 3, 2018.
• This book was $3.99 when we started tracking it.
• The price of this book has changed 15 times in the past 2,683 days.
• The current price of this book is $6.99 last checked 19 hours ago.
• This lowest price this book has been offered at in the past year is $5.99.
• The lowest price to date was $1.99 last reached on October 4, 2018.
• This book has been $1.99 one time since we started tracking it.
• The highest price to date was $6.99 last reached on May 2, 2025.
• This book has been $6.99 6 times since we started tracking it.
• This book is currently at its highest price since we started tracking it.

• Literature & FictionUnited StatesAsian American & Pacific Islander
• Literature & FictionUnited StatesAsian American
• Mystery, Thriller & SuspenseMysteryTraditional Detectives

• Publication Date: October 22, 2017
• Text-to-Speech: Enabled
• Lending: Disabled
• Print Length: 351 Pages
• File Size: 28 KB