Dash and Lily’s Book of Dares is the third collaboration between writers Rachel Cohn and David Levithan. In this novel, Dash finds a notebook in his favorite bookstore full of clues that promise to be the beginning of an adventure. Dash completes the clues and leaves a message for the girl who has created the notebook, excited to see where it might take him. Lily is equally excited to have Dash respond to her attempt to find some adventure outside of herself during the long Christmas holiday. However, when things do not go as planned, both Dash and Lily have to wonder if reality is less than it is cracked up to be.