Gwen thought on Odin. He sacrificed his eye to drink from the well of Mimir, under the root of Asgard on the world tree to gain vision of the long range future. And then he speared himself and hung from the Gallow's Tree as a corpse to learn the secret alphabet of the runes.
She knew this from her other reality, the world she felt was real, though less and less the more time she spent dreaming at Hogwarts. She had learned about the norse myths from her friend Graves. He was very well versed in such matters and he had even encouraged Gwen to make a set of runes for herself. And to impress Graves she did so out of rocks where on she painted the ancient symbols. She rarely used her runes though. She felt they were powerfully magic and not to be tinkered with lightly.
What could it mean? Obviously Gwen had some impressive divination skills. She had shown early promise when she began taking classes with Trelawney but with the ridicule the practice received, Gwen quit after her fourth year at Hogwarts and hadn't since picked up a deck of tarot or a set of runes.
She sighed. One more mystery to add to the pile and she still hadn't told Harry everything she had wanted to.
To be continued in Episode Six