Case of the feathered mask [Mysteries of Maisie Hitchins Volume: Book 4]by Webb, Holly 

BTSB Prebound(Houghton Mifflin Harcourt, 2016)

BTSB #: 924928 Available

Dewey: FAges: 9-12   
AR: 4.7 LG RC: 4.3 3-5 Lexile: 700

Genres: Mystery Fiction

Subjects: Mystery fiction Boardinghouses - Fiction Masks - Fiction London (England) - History|y19th century - Fiction Great Britain - History|yVictoria, 1837-1901 - Fiction

Summary: Junior sleuth Maisie Hitchins, who lives in her grandmother's boarding house in Victorian London, investigates the theft of a rare and valuable tribal mask from the Amazonian rainforest.

Lily's cat mask by Fortenberry, Julie 

BTSB Prebound(Viking, 2017)

BTSB #: 325173 Available

Dewey: EAges: 4-6   
Lexile: 500 AD

Genres:

Subjects: Masks - Fiction Cats - Fiction

Summary: Armed with a vivid imagination and an eye-opening cat mask, Lily is ready to take on a new school!

Shadow mask by Oliver, Lin 

BTSB Prebound(Scholastic Press, 2013)

BTSB #: 689436 Available

Dewey: FAges: 10-14   
AR: 5.4 MG RC: 5.4 6-8 Lexile: 820

Genres: Science Fiction

Subjects: Extrasensory perception - Fiction Masks - Fiction Brothers - Fiction Orphans - Fiction Uncles - Fiction

Summary: Leo's cruel and greedy Uncle Crane is forcing him to use his ability to hear sounds from the past to steal the other half of the mysterious Siamese twin mask that was once owned by Leo's father--or be separated from his younger brother forever.