"From the instant the family arrives in town, they get caught in an explosion at Chang's Famous Fireworks Factory followed by a mystery that keeps Sheriff Burton Ernie and the rest of Boomtown guessing. It's a race against time as Jonny Button and his friends try to save his father from the curse of the Mysterious Mole. With amazing inventions and death-defying adventures, this story starts with a Boom and ends with a Bang! So you better watch out! The fuse is already lit! Things are about to explode!"--P. (4) of cover.