Third in "The Dark is Rising" series, this book sees the meeting up of the three children from "Over Sea and Under Stone" with Will Stanton from "The Dark is Rising".
The grail that the children found in a cave in Trewissick, South Cornwall, has been stolen by an agent of the Dark, and Merriman enlists the help of the Drew children once again. Only this time the children are surprised and shocked when Merriman arrives with another boy - Will Stanton. That is surely going to be a problem, they think.
Susan Cooper writes this so well. The line between super human Old One and 11 year old boy is so perfectly walked. Each character develops nicely in this book, but especially Jane.
I loved this book as a child. The interactions between families and friends, and the stumbling move from antipathy to friendship between the Drew children and Will Stanton all stand out, along with flashes of humour and an exciting and mysterious tale, cunningly written.
As an adult reader this remains an important and enjoyable book in probably my all time favourite series. Definitely strongly recommended.