ISBN-13: 9781505387841 / Angielski / Miękka / 2014 / 160 str.
Most family vacations don't include secret passages, being taken prisoner, desperate escape attempts, and forgotten underground lairs... But this one did. A trip through Mexico to explore Mayan ruins was supposed to be an adventure, but when three children and their parents are trapped under the ancient city of Palenque, they get more than they bargained for.