This is the sequel to The Golden Acorn (the first one) and I got this one and number 3 and 4 for Christmas. I've read this and now I'm onto number 3!
Jack and Camelin have recovered the last three cauldron plates from ancient Rome and they've gone back to the present from the past, but there is one small problem, they can't find them! Even if they can find the missing cauldron plates will Nora have enough magic left to open Glasruhen Gate into Annwn and recover the Hamadryad acorns? Fun, adventure and magic all in one great book.