Aug-06-2011, 01:30 PM (UTC)
The inheritance was never intended to be a quadrilogy. I also have Ursola LeGuin's 'Earthsea quadrilogy', but that was intended to be a trilogy too (part 4 was written years after the third book). The only 'true' quadrilogy I've read is by Marjorie B. Kellogg (the dragon quartet), but because the books are based on the four elements (earth, water, fire, air) that's not very surprising.
You know nothing, Jon Snow