Advice please, if you'd be so kind

   

    I've had Susan Cooper's The Dark is Rising series on my wish list for ages, and it's about time I got to it, especially as this seems an appropriate season of the year to start reading it. My question for all you Cooper fans is which book to start with?

    Would you advise beginning with Over Sea Under Stone (which I understand was written several years before the others and is less complex, being more for younger readers), or can I just dive in with The Dark Is Rising itself and go on from there?