Has anyone seen this book re ancient Druids?

[RonLoving]

In the 60's I found a book. The author was "anonymous". It told a legend of a time people lived in the north at the pole area. The ice started and they migrated southward. Each place they settled temporarily, they taught the locals as much lore as they could . The book said in the area of what is today Ireland, Scotland, Wales, England their work was called (later) "Druid". It described how the group moved on through Persia and when they ended up in India their leader was known as "Ram". (Rama?) Tibetans also have legend of such a migration and they time it as around 18-20,000 years ago.
Has anyone seen this book? If so does anyone know the title? I'd like to re-read it. Oh, they also talked of a preparation made from Mistletoe known to them as "All Heal". Anyone know of such a concoction?
Blessings,
Ron