We learned this summer that “Every Hero Has a Story.” Rick Riordan has created lots of heroes in his Percy Jackson series and his Heroes of Olympus series. Celebrate these heroes with trivia, crafts and games. We'll also celebrate Riordan's newest series, Magnus Chase and the Gods of Asgard. Costumes welcome — Greek, Roman, Norse or other! Ages 9-14, parents welcome. Registration begins Tuesday, September 22.