One morning an egg appears in the meadow below the Great Oak Tree. Neither Jeremy Mouse nor the fairy Tiptoes Lightly have ever seen such a huge egg - over a foot tall! They go to Farmer John's in search of an answer, but without any luck, and when they return the egg has grown!Thus begins an adventure which involves most everybody on the farm - human, animal and sprite. The egg, later hidden deep in the forest, keeps growing and finally hatches...