Hi, all. I'm new here, and don't have time to go through every former post; 

Does anyone know of well-written books on Celts? Well, not specifically Celts- anything set in pre-Roman/Christian Britain would do. I've looked through my library and Amazon, but the ones I found were geared towards the 8-12 crowd. :P

It could be historical fiction or fantasy, it doesn't matter.

Thanks!