As you can see, many of my Christmas must-reads are childhood favourites, books that have been a part of my life since primary school. Many of Enid Blyton's Famous Five series are fairly generic - the woman did write more adventure stories than most people read in their lives! - but Five Go Adventuring, the second book in the series, is one of my favourites, even now.
The quintette spend a lot of time over at the nearby farmhouse, which, it is rumoured, contains all sorts of secret tunnels and cubby-holes. I'm sure that when I wasn't checking my wardrobe for an entry into Narnia, I used to hope fervently for a false back that was also a door into a secret passageway! Alas, there was none. They find a map, with coded hints to other passageways, and the solving of this mystery appealed, and still appeals, to my inquisitive imagination. When valuable papers are stolen from Uncle Quentin's study, and there seems no way to track the thieves due to the house being snowed up, the secrets of the map become very helpful indeed!