Discover the amazing adventures of your favorite Little Passports pen-pals, Sam and Sofia, in this three-title chapter book set! Will Sam and Sofia solve the case of the missing crocodile mummy in Egypt? Will they track down a new friend’s missing musical instrument in Australia? Will they finish their adventures in Mexico in time to see the shadow of a snake slither down the famous Maya pyramid El Castillo? Experience the adventures for yourself with this globetrotting series.