Time and Again

M1, T5: After Samantha, Gus and Verne save a magical carpet from Zarlak, they've got to go back to their least favorite class at the Enchanted School -- Magical Histories, taught by their least favorite teacher -- the dull and boring Mr. Sternwand, who, takes the class on a field trip through a time portal to witness the moments before the famous battle between Gez and Zarlak...