When Arthur discovers that Grandma Thora is a marbles champion, he tra ins with her so he can beat all his friends. And though Thora teaches Arthur everything he knows, she doesn't teach him everything she knows ... and it's Read versus Read in the first-ever Elwood City Marbles To urnament. Brain doesn't believe in superstitions, even though his frie nds step over sidewalk cracks... and even Mr.Ratburn walks around ladd ers. So when Brain's defiance leads to a string of bad luck, he's stun ned. Can he reverse the trend before the unluckiest day of them all-Fr iday the 13th?
