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Gaston Leroux
Gaston Louis Alfred Leroux was born in Paris and worked there as an author and journalist (Wikipedia). His most famous work is The Phantom of the Opera as it has been made into films and a musical.
Le Mystère de la Chambre Jaune
A young reporter named Joseph Rouletabille is on the scene when a famous scientist is attacked in her locked laboratory. The room is sealed from the inside, with no apparent way for the assailant to have entered or escaped. Rouletabille must use his sharp intellect to solve this baffling mystery before the culprit can strike again.