While hunting boar in the Kingswood, Robert Baratheon discovers a lost band of Sell Swords who speak a barely recognizable dialect of Free Cities Valyrian. Befriending them, the King, along with Ser Barristan, returns to their camp; only to discover it is a Castra guarded by an entire Roman Legion. When Robert returns to King's Landing with them, will Westeros ever be the same?

Petunia married a biochemist, and Harry grew up reading science and science fiction. Then came the Hogwarts letter, and a world of intriguing new possibilities to exploit. And new friends, like Hermione Granger, and Professor McGonagall, and Professor Quirrell... COMPLETE.