This is Molly, she belongs to our new next door neighbours (who are lovely). Molly is a lady of quite mature years, but we have discovered that she's still very agile. She clambers up onto the roof of our extension, then somehow she has the energy and agility to climb into our son's bedroom window! Whereupon she makes herself very at home in his room. We're not sure who's more surprised, Molly or Matthew!
... as you can see from the time this photo was taken, Molly likes to stay up late. This is her being gently returned to the garden, so she can make her way back to her own home.