Izipo
Hardcore casual gamer
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On second thought, why can't you go back? Did you dig your way down into Medusa and Castle level?
</Edit>
Entered medusa's level, fell into a trapdoor and went back up to kill her.
Actually there IS a level between Medusa and the castle, I forgot it when I made the post.
Wand of cold/Cone of cold spell - turn water to ice, which you can walk on (and will not melt).
I thought of this, but of course it's in my stash in the level ABOVE medusa.
Looking back on it, I was quite unprepared and got carried away while going down.
Boulders - see if there're any on your side of the castle maze. Push it down the moat. Be careful about something breaking the drawbridge from the inside.
No boulders in the castle and I already used my scrolls of earth in medusa to reach the middle island. Still a lot of water to cross.

Water walking boots - Got some unidentified boots on you? With blessed waters you can even try the cursed ones. Depends on how many boots you've identified, this may or may not be useful.
Nope!
Amulet of magical breathing - Swim! Stash away anything that could get wet. Blessed metallic items are a bit less likely to rust.
Ditto!
Polymorph - If you have polymorph control, turn into something that can fly. Then you can fly over the moat, either into the castle or back up.
Neither Polymorph control, nor polymorph. All my unidentified wands are above, I still lack ID scrolls.
Saddle - chances are slim, but you can ride a flying pet (like a dragon).
Pet died. No saddle. No dragon in sight.
Just swim - with the drawbridge broken, you might get lucky and get back up on the other side. Standard procedure for protecting items that could get wet. (Edit: not usable for crossing Medusa level)
Thought of that too, but risky.
A cursed potion of gain level. NH like puns.![]()
Don't have one, but I'm wondering if it would work in Medusa's lair. It's a no-teleport levl. Too bad, because I have a wand of teleport and teleport control.
Dig down - if you can handle the nasties down there, just dig down. You might find a way to fly down there.
That's probably what I will try, and wish for something good.
Or some crazier idea. Get punished! Make your god mad (might get other effects), or better yet read a scroll of punishment. Then throw your connected iron ball and see how far Physics will take you!![]()

Thanks again for your help. I just need to find the resolve to go deeper. I'm scared.
It's too bad really, I was thinking "I should go back up (lvl15) to do the quest, but I need fire resistance, one...more...level", turned out to be one too many

This game is amazing.