Country hopping is what these twins do best! Tomi and Marisol are homeschooled by their history professor dad and well-known biologist mom. Their classroom is the world as they travel deep into rainforest or out to remote islands. The twins are having adventures and making new friends along the way as they learn about new cultures and countries. The Perez family is out and about in South Korea! Tomi and Marisol are spending their summer vacation away from Chicago while their dad teaches at the local university. These expert travelers are ready to explore the palaces, temples, and volcanic park that South Korea offers. Along the way they rekindle an old flame of Aunt Bernadette's, get on TV with a Korean K-Pop star, and find themselves in a river without a paddle! The twins and their aunt accidentally end up crossing the border into North Korea and are detained. Will they ever get out?Adventure books with longer, complex sentences, rich vocabulary, and minimal illustrations are perfect for fluent readers.