Died on level 24, leveling up a bit before doing the quest. Everything was going fine--I had done a water prayer to get rid of some cursed boots, and then used it to bless my bag of holding and what I think were luckstones and some other stuff. Got through sokoban fine despite some early errors--and Rex behaved himself nicely, thanks for the advice on that. I also stashed a bunch of my stuff in throne rooms which helped with the burden there. After about four zoos and a leprechaun hall I had about 30k zorkmids stashed ... but anyway, let me get to the sad ending: I walked into a polymorph trap and turned into a fox. Kept my head and remembered that I'd change back when something killed me ... but that something turned out to be a purple worm, and I couldn't reequip fast enough to escape. In retrospect, I should have used the whistle to summon my bone demon as soon as it appeared. Oh well.