While Ben is presenting new information about John Wilkes Booth and the 18 pages missing from Booth's diary, one man stands up and presents a missing page of John Wilkes Booth's diary. Thomas Gates, Ben's great-grandfather, is mentioned in the page. It shows that Ben's great-grandfather could have been a person involved with Abraham Lincoln's murder. When doing more research, the conspiracy takes Ben, Abigail, and Riley to Buckingham Palace(which they break into). It takes them to a book in the