Sister, Sister, Where Does Thunder Come From?

Little Brother's inquisitive mind is always full of questions for Big Sister. He knows Big Sister has all the answers, because she is always reading one big fat book or another. In this book, Little Brother wonders where thunder comes from. Is it the roaring of the angry giant who lives in the sky that causes the heavens to rumble, or is it just the wild biker gang up in the clouds that makes all that noise? Of course, Big Sister has the right answer in the end, but before you start reading this fun book to find out, tell us: where do YOU think thunder comes from?