Well, no, not exactly. What Grey did is just outlining what your characters will experience. Don't think of it as present time, more of as a guide. If Grey had written the post with the intention of filling in for all of our characters' experiences, then there'd be nothing for us to write about. Per example, I've already written a post up to taking off with the griffin. I still have to write up the parts about going through the wormhole and arriving at the academy. So feel free to have Mundus go through all of the above.