Greetings from somewhere

Separated from their parents in the Forbidden City in Beijing, China, second-grade twins Ethan and Ella luckily find an ancient map that helps them find their way.

With help from their cousin Harry, eight-year-old twins Ella and Ethan discover who is illegally taking coral from the reefs near their aunt and uncle's beach house on the shore of Australia's Coral Sea.

While in Machu Picchu, Peru, with their parents, eight-year-old twins Ethan and Ella cross a secret bridge and discover a mysterious stone sculpture.

"In Paris, France, twins Ethan and Ella must find a stolen painting and a secret bakery without giving themselves away"--Provided by publisher.

In Venice, Italy, second graders Ethan and Ella hope to find a stolen gondola and a hidden mosaic before their parents realize they are missing.