For city kids like Sophie and Matthew, growing pumpkins is a big thrill. But they're worried. They know they need bees to make their pumpkins grow, but will the bees find their garden? Are there even bees in the city? So one day, Grandpa and the children set out to look for bees. They arrive downtown just in time to see something amazing: a buzzing ball of bees hovers from the branch of a nearby tree. And high on the terrace of a towering hotel are...