Charlie, Anna, and Emily must overcome their differences and work together to solve various puzzles leading to the secret treasure a famous female explorer left in Idlewood Manor before the adults do.
year:
call number/section: 1000
subjects: brothers and sisters, juvenile fiction, code and cipher stories, explorers, friendship, mansions, mystery fiction, treasure troves, fiction, buried treasure, ciphers, mystery and detective stories, siblings, detective and mystery fiction