Well, even adventurers have to rest every once in a while. A prerequisite of adventuring isn't necessarily that you're hobo. And anyway, it's the hall of Echoes, which will be interesting in its own right, not some cottage. Somehow, as Sourcerers, you can access it before death. It's probably not a safe place to permanently hunker down with a crazed source hunter after you, but it's okay for a night here and there. I'm sure they'll provide plenty of reasons why you need to keep on adventuring on despite having a home. If you do nothing to stop Alexander the Innocent, he's going to take over the world.. Whether you want to stop that for your own safety, or to protect innocents, that's your roleplaying choice.