The Worst Day of Your Life

From publisher blurb: You're headed for your worst vacation ever: while the rest of your family is vacationing in Hawaii, you have to work on your uncle Norbert's pig farm raising money to replace the roof you accidentally destroyed with your gunpowder rocket. Suddenly the bus you are on sputters to a halt, and it's still six miles away from the farm! You're hot, hungry, tired, and thirsty, and big, dark clouds are building up on the horizon. It'll take hours before a tow truck arrives and gets you going again.