Leslie has never lost a fight. Not one. Not ever. Masters who have trained for decades fall to her superior knowledge of what appears to be every martial art. Which…shouldn’t be possible. When someone is in trouble, she swoops in, saves the day, then disappears. With no one even getting a chance to ask her name. And with no apparent superpowers to speak of. What is Leslie’s secret? Is it clairvoyance? Telepathy? Magic? Or just unparalleled skill? And in a world with an ever increasing number of beings with extraordinary superpowers, can she continue to be The Unbeatable Hero X?