Title: The House without a Key (Charlie Chan Series #1), Author: Earl Derr Biggers
Title: The Chinese Parrot (Charlie Chan Series #2), Author: Earl Derr Biggers
Title: Behind That Curtain (Charlie Chan Series #3), Author: Earl Derr Biggers
Title: The Black Camel (Charlie Chan Series #4), Author: Earl Derr Biggers
Title: Charlie Chan Carries On (Charlie Chan Series #5), Author: Earl Derr Biggers
Title: Keeper of the Keys (Charlie Chan Series #6), Author: Earl Derr Biggers
Title: Charlie Chan in the Pawns of Death, Author: Bill Pronzini