Librería Samer Atenea
Librería Aciertas (Toledo)
Kálamo Books
Librería Perelló (Valencia)
Librería Elías (Asturias)
Donde los libros
Librería Kolima (Madrid)
Librería Proteo (Málaga)
Two brothers, Grandma, Poppa and their clever dog Boo team up for secret messages, silly challenges and lots of laughs. Can you solve the number ciphers before they do?In each adventure, kids not only join the treasure hunt, but also learn fun new skills-like cracking secret codes or reading maps-that they can use in their own quests!