I first read this book when I was 7 during a holiday, near Padstow, where the tale is set.
It's about a young girl called Susan who meets a wonderful dragon in a cave at Constantine bay, near Padstow. (She is also on holiday, from St.Albans).
The friendship develops and he tells her marvellous stories of Arthur and his knights, of creatures and magical happenings. On one or two occasions the dragon even takes her to meet a friend or two.
The set is presently out of print, which is a great shame. I've just begun reading my copy to my son, who, though 4, loves to hear about dragons.
It may be a little twee for some of the more aggressively developed children of today. But as a tale of friendship it is a delight.
Give up the Gameboy, switch off the PC and pick up a book. If you're a child, you could do worse than this. If you're an adult, it may remind you of how childhood should be, innocence and happiness, without the dreadful woes and horrors that the real world can bring.
In case you're wondering:-
BK1: Green Smoke
BK2: Dragon in danger.
BK3: The dragon's quest. (Best of all, set in Arthurian times).
BK4: Dragon in the harbour.
If you can find them, buy them, at any cost.