A trip to Washington, DC turns into a perilous scramble through dark alleys and secret passages as Jake, Lucy, and TJ race to find the lost letters of Mary Lincoln before they fall into the hands of the Order of the Dark Lantern. What makes these letters so valuable to the Lantern? And how did the White House fall under control of this dark and powerful group? Another fast-paced, adrenaline-pumping thriller with all of the action, humor, and historical trivia that make the Jake and the League Series such a riveting adventure.