Title: Missione Niagara
Description: When a member of their group goes missing, the Thea sisters head to Niagara Falls to find him.
Subjects: Missing persons, Mice, Fiction, Juvenile fiction, Mystery and detective stories, Children's fiction, Mice, fiction, Canada, fiction, Juvenile literature, Action & Adventure, mystery, sisters, bird-watching, friendship, hockey, Thea Stilton series, Sisters, fiction, Birds, fiction, Missing persons, fiction
Places: Canada, Niagara Falls (Ont.)
People: Thea Stilton
Time periods: Contemporary