Crossword puzzle clue "fictional character who first appeared in the house without a key"

Fictional character who first appeared in "The House Without a Key"

Fictional young brother-and-sister detectives who first appeared in a 1904 book credited to the pen name Laura Lee Hope: 2 wds.

Fictional spy who first appeared in "Call for the Dead"

Fictional young male detectives who first appeared in a 1927 book credited to the pen name Franklin W Dixon: 2 wds.

Fictional sleuth who first appeared in the Saturday Evening Post

Fictional young female detective who first appeared in a 1930 book credited to the pen name Carolyn Keene: 2 wds.

Fictional young female detective who first appeared in a 1948 book by Julie Campbell Tatham: 2 wds.

Where to order un thé