The students of Super Hero High go on a one-of-a-kind field trip that will allow them to learn about the past, up close and personal! In fact, they will be in the past! After a time-machine mishap, Harley Quinn, Wonder Woman, Supergirl, Batgirl and company find themselves in the Jurassic period! But how will their time in the past affect their future? Find out in the latest title in the hit all-ages graphic novel series!From the best-selling line of kids graphic novels and ce