He invented the girl detective after his Hardy Boys series became a hit in 1927.

Unlike other girl detectives, Nancy does not go to school (for reasons that are never explained), and she thus has complete autonomy.

The girl detective picked up the receiver and said, "Hello."

A sudden daring idea came to the girl detective.

There, the girl detective, crouching on her knees, opened the secret door.

Nancy tries to talk to Linda, but she refuses to come out, lamenting with words that make no sense to the girl detective.

It is about a would-be girl detective and her friends.

Actually, it amuses me to think about a girl detective.

Soon, the inexorable pull of the golden-bobbed girl detective was too great.

The girl detective, the one who looked a little bit like Alice, had something in her hand, a plastic bag.