Ang closed-door mystery

Bibliographic Details
Main Author:	Sastrillo, Bernalyn Hapin (Author)
Other Authors:	Sinaban, Borg (Illustrator)
Format:	Book
Language:	Filipino
Published:	Lungsod Quezon Adarna House, Inc. [2018]
Series:	Detective boys of Masangkay
Subjects:	Detective and mystery stories, Philippine (Filipino) Teenagers > Juvenile fiction. Detectives in literature.