Hellfire

You get the spell by solving the riddle that the girl sings to you, you will then be sent back to the start. However, if you use another item at that point, all will become clear.

time, memory, me, sight, shadow

The answer is not a physical thing

Soul

I used the Time spell at the Acid and went back to the start. Presumably this is so I can take a diferent route and get a different item to help me get past the acid. But the only items that you can't pickup on your first run through are the Ruby and the Ivory Beetle Charm - neither of which seems to make much difference. Someone give me a clue as to what I need to do different on the second run through!

The very hairy man holds the secret. You must have met him before the Time spell will make sense

The one who becomes the Werewolf

So I need to get the Open Door spell off the Werewolf, then use the Time Spell to go back and use the Open Door Spell somewhere before I would meet the Werewolf?

I'm clueless as to which door. I have blue, red, silver, platinum and crystal keys - which seem to open all the doors I've found. I can't be arsed with a trial and error approach to every single door - it would be better if there was a clue in the book somewhere, otherwise it's just a random case of using a spell at every location. Where's the fun in that?

So please, could somebody give a clue about what to do once you've used the Time Spell and gone back to the beginning.

Where are the Rusty Gauntlets? Elsewhere in the Guestbook, someone says they're with the Shadow Hunter. But I can't find him either.

It's right there in the text. There's nothing hidden. Just use the Time Spell at the acid river and read the text as it's presented to you.
You'll kick yourself when you find it, it's so obvious.

You are looking for a door that you have already seen but were unable to open. It is not hidden, it is described clearly in the text. I'll give you a clue - you don't need to go all the way through the dungeon to find it.

You will have to use the Reveal Invisible spell at a certain area in the adventure. The area in question is unusual in that it doesn't seem to have a purpose.