Trueit, Trudi author

EXPLORER ACADEMY THE DOUBLE HELIX (BOOK 3) Trudi Trueit -- Washington, D.C. National Geographic 2019

215 pages : color illustrations, colour maps 24 cm

ISBN:  9781426334580

1. Ciphers /xJuvenile fiction.  2. Explorers /xJuvenile fiction.  3. Boarding schools /xJuvenile fiction.  4. Schools /xJuvenile fiction. 

JT