Stilton, Geronimo creator Battan, Alessandro 1974- illustrator text Adventure fiction. New York Scholastic 2010 monographic 161 pages : color illustrations ; 20 cm. "When Paulina gets a phone call from home telling her that a friend is missing, the Thea Sisters travel to Peru to help solve the mystery. There, the five mice climb the Andes Mountains in search of a missing archaeologist. Along the way, they stumble upon clues leading them to a mysterious hidden city. Will the Thea Sisters find Paulina's friend, and the treasure of the Secret City?" -- P. [4] of cover. K 620 Lexile K Raz-Plus [text by Thea Stilton ; illustrations by Alessandro Battan ... et al.]. "English translation by Atlantyca S.p.A."--T.p. verso. Mice Juvenile fiction Treasure troves Peru Juvenile fiction Humorous stories PZ7 .T3388 2010 [Fic] 9780545150613 0545150612 BTCTA 20230925132405.0 1737 eng