I read 'The Crystal Cave' book by Mary Stewart, and I thought it was a really, really interesting part of the legend, in which Merlin could enter into the cave with these crystals and see reflections of the future in them and learn how to use that and harness those powers for himself.
Transparentprofile is a community based platform that benchmarks leaders. Users search for positive and negatives news and publish them here together with some basic information's like birthday, height, salary and much more.