I've been reading the Spire of Quetzel and am wondering how you handle navigating the Silver Maze (and to some extent the Poison Garden). How do you determine how long it takes the players to find the centre? For the Silver Maze, in particular, it seems that every turn spent wandering its passages carries the risk of running into a glass tiger so navigating it quickly is desirable. I'd love to hear how you've handled this in your games (and whether you might do it differently next time).
One thought I had is to use scouting rolls with the number of successes indicating the amount of progress made, which would count towards a total required to reach the destination (the centre, the entrance, or some other point of interest discovered on the way).