Billy Sure, twelve-year-old inventor and CEO of Sure Things, Inc., has come up with another zany invention that tells you what you’re best at in the fourth book of a hilarious middle grade series!

Everyone is talking about Billy Sure, the twelve-year-old genius and millionaire inventor whose inventions have become instant hits. Billy’s lucky because in addition to being a rich and famous inventor, he already knows what he’s best at: inventing, of course! He wants to help other kids figure out what they’re best at too, and his latest invention—The Best Test—will do just that!

But when Billy takes the test himself and the results come back saying he isn’t the best at inventing, and what he’s best at has nothing to do with inventing at all, he begins to wonder who is. And what that means for the future of Sure Things, Inc.

Luke Sharpe is not a millionaire, but he has been trying to invent a machine that can teleport people anywhere in the world since he was eight years old. He has so far been unsuccessful but he has vowed never to give up. When he isn’t working, Luke enjoys Hawaiian pizza and skateboarding. He lives near Chicago with his wife and son (named Billy, of course), their gecko, Eddie, and their aquarium full of exotic fish.

Graham Ross has grand plans for world domination through his illustrated inventions. Right now he’s having a “ball” hanging out with Billy Sure, the next sure thing! Graham lives in a little log home in the woods with his inventive family, just outside of Merrickville, Canada.