A mage and a noble, not entirely wrong on either count. Not entirely right either. Just a talented user of the magic of his world, a magic with a unique magic in her genes, and a hick raised up to a leader, so there you go.

"The word you are looking for to refer to the 'whole thing' is 'world' or 'planet.' World implies societal structures of humanity as well as the physical structure. 'Planet' would be the physical structure itself, with or without the life on it. Granted, Gaia is sometimes just referred to as 'The Planet' but that's just the way people are where I'm from. And if you don't already have a word for the planet you're on, just call it Thedas."

Let him assist Alistair in the information he's looking for. That's who Reeve is.