A secret hidden deep under the sea is about to surface… Arriving in Greece on the trail of a missing friend, The Adventurers land themselves in a mystery filled with suspense. An ancient map has been discovered, but where does it lead? Who are the menacing figures pursuing them at every turn? Join Lara, Rufus and the gang as they set sail for an island-hopping escapade! "Hatt's novel is cleverly paced and chock-full of action, a perfect blend for her intended audience... The dynamics between the kids and adults in this story feel authentic, and will be a hit with middle grade audiences." The BookLife Prize "This is the sixth book in Jemma Hatt's The Adventurers series and every book continues to be a fun and enjoyable romp. I love the characters, their friendship, and the globetrotting exploits. It's a great story for kids (and those who are young at heart)." Bookfrolic