When Tom's hand gets stuck in Aquila's glove compartment, his whole arm turns green. After the initial panic, he realizes that the green skin comes with immunity to pain and incredible strength, which comes in handy when he runs into the school bully. Tom's neighbor, Mrs Murray, hears the boys talking, but since they're invisible in Aquila, she starts to wonder if she's going crazy. Meanwhile, Professor Hare is making some amazing discoveries at the archaeological dig, which he thinks prove that the Romans discovered America centuries before Columbus got there.
—Phil G