I was pleasantly surprised by this book. The cover had wowed me, but I was skeptical of the whole Druid/Celtic thing- I hadn't read any books set in this time-period before. However, Once Every Never was facinating and kept my attention with its mix of science and magic, Druid beliefs and modern archeology. It started off strong, and didn't lose any energy. Clarinet 'Clare' Reid is sent from Toronto to England to stay with her boring, archeologist aunt. Lucky for her, her best friend Al is going with her. While in a museum looking at ancient Celtic artifacts, Clare finds herself magically transported back in time. She soon finds that this is one vacation that will anything but boring- and finds herself messing with magical curses and trying to save both a Celtic princess and ancient artifacts. The Celtic culture explored in this book was fascinating and well-researched. The scenes where Clare traveled back in time seemed very realistic: the settings well-described and the characters very "of-their-era." My favorite character was Comorra, the Celtic princess who was tough, loyal, and totally kick-ass (but then, what else would you expect from the daughter of Queen Boadicea? Queen Boadicea was strong, powerful and super interesting- but not very likable due to her messing-with-black-magic ways. The characters from the modern day were less interesting, I found, than the ancient Celtics. This was mostly because they weren't warriors and princesses, but regular, everyday people. However, they weren't really boring- just sort of mundane. The writing was good but not anything out of the ordinary. Overall, this book was mostly plot driven- and the plot very exciting. I liked reading it, and found the Druids fascinating. This book is part fantasy, part historical fiction, and part romance. These elements combined into a suspenseful, humorous, magical adventure that I couldn't put down. Rating: 8.5/10 Characters: 8/10 Premise: 9/10 Enjoyment: 8/10 Plot: 9/10