Lily and Fred are going to see their grandparents. This is first time that Lily and Fred have made the short journey on their own; they feel very grown up. They like to stay with Grandma and Grandpa because they live in the countryside. It is very different from where Lily and Fred live in the city. There is a big, wooded garden where the children watch the wild birds and animals that visit. They have seen owls, squirrels, foxes and toads.   Lily and Fred especially like to feed the birds. Grandma has hung up a coconut near the bird table for some of them. Lily and Fred put out tiny pieces of potato and fat left over from dinner for some of them. There are other birds that particularly like the dried seeds of the sunflowers that Lily and Fred had grown in the garden last year. The last time Lily and Fred stayed, they had helped Grandpa to put a bird nesting box on a tall pine tree in the garden. So, as soon as they arrived, they ran into the garden to look for the nest box. There it was near the log pile, but it was not quite as they remembered. How exciting - this time it had a lining of moss! Who had chosen it as a home? While they put out some water for the birds to drink, Lily and Fred talked about the nest box.   Who had made its nest in the box? Could it be the smartly dressed Great Tit that cracked open sunflower seeds while holding them between its feet? Who had made its nest in the box? Perhaps it was the busy Nuthatch they had seen flitting from tree to tree and that used its beak to dig into the bark for insects to eat? Who had made its nest in the box? Would it be the Robin that hopped among the bushes and enjoyed the tiny pieces of potato and fat that Lily and Fred put on the bird table? Who had made its nest in the box? Maybe it was the acrobatic Blue Tits that loved to feed while swinging on the coconut trapeze? Who could it be? Grandma and Grandpa encouraged the children to wait and watch so they would see who had secretly made a home in the box. They kept watching but all they could see were nibbled pine cones laying scattered at the bottom of the tall pine tree near the log pile. Then - at last! Lily and Fred saw who it was!   It wasn't the smart Great Tit. It wasn't the busy Nuthatch. It wasn't the hopping Robin. It wasn't the acrobatic Blue Tit. What a surprise! Out climbed...   ...a squirrel ! The little red squirrel they had often seen on the log pile, eating pine cones. The little red squirrel that scampered helter-skelter up and down the tall pine tree. The little red squirrel that they called Squiggle because his beautiful, bushy tail was a squiggle shape. The little red squirrel had made a home in the nest box! What a surprising, secret squirrel. Secret Squiggle!