This is not the easiest book to read in many ways. Its setting is not long after the death of mythical King Arthur. Main characters include an elderly couple who have left their home to search for their long lost son, an aged knight supposedly Sir Gawain, a dragon monster, a “gifted” older child, and a Saxon warrior. Some of them are Britons and some are Saxons, and in some cases they view each other as arch enemies. There is a monastery with both good and evil monks, a tunnel, lots of forests and mountains, rivers, and a lake where a boatman ferries people to an island–perhaps the residence of the afterlife. The potential symbolism is endless if the reader is into symbolism. The dragon monster has created an endless fog which dulls the long term memory of the humans. The elderly couple want to get rid of the monster so they can repair their memories, but will this really be a good thing. That is one of the main questions in the book. Most analyses of the symbolism say the buried giant is the dragon, but I think it is the buried memories of everyone, but especially the elderly couple, who are desperate to recover their memories.