It's a bird! It?s a plane! It's...a helicopter full of farm animals? It's this wacky premise that catches kids' attention, but the underlying message of this book is about the power of positivity - that when you believe in yourself, anything is possible. Ralph, the hero of the book, won't take no for an answer. When his father tells him he will buy him a bicycle 'when pigs fly', Ralph cheerfully takes his father's comment to heart and sets about devising a way to get his curly-tailed pals airborne.