In the third and final book of the TMI meets TID series, the New Yorkers decide to go back in time to London 1903. Only this time, they bring their children with them. What happens when they meet the shy James Herondale, the friendly Lucie Herondale, the always delightful Matthew Fairchild, and many more. Follow them, as they go through what may be the most memorable trip of their lives! CONTAINS SPOILERS! and all rights go to Cassandra Clare :)