Meet the Post Family: Mom owns a postcard company.. Dad is a postmaster.. Peter and Piper love to send postcards to their pen pals, but most of all they love to intercept postcard messages! But what about one that starts out "Dear Alien?" What can that mean? To get to the bottom of things, mom and the kids rumble off in their SUV on a SETI (search for extraterrestrial intelligence) to see if a LGM (little green man) is really behind the suspicious postcard! Postcard Mysteries: What happens when you mix together curious kids, postcards addressed to mysterious names, and parents that own an RV? These exciting new mysteries will take kids ages 7-14 around the United States in a beat-up RV that is always gassed and ready to go. This new Mystery Series by Carole Marsh takes a fictional family immersed in all things "post" on the road as they try to solve these exciting postcard puzzles. Each mystery incorporates history, geography, culture and cliffhanger chapters that keep kids begging for more! Each mystery includes SAT words, educational facts, fun and humor, built-in book club and activities. Each Carole Marsh Mystery also has an Accelerated Reader quiz, a Lexile Level, and a Fountas & Pinnell guided reading level.