The Invisible Spy (The Forgotten Five, Book 2)

The forgotten five have made it to Estero to search for their missing supernatural criminal parents. With the help of their new allies, Lada and The Librarian, they’ve managed to find Birdie and Brix’s mother, Elena, and free her from captivity in the presidential palace. Now the president’s henchmen are searching everywhere for the children who broke out Elena, driving the group into hiding in the ancient underground tunnels beneath the city.