Mines:
I have Leandra's Blood, but can't find the supposed "scroll" to combine with it, so even if I get to Leandra I can't kill the DK.

Troll King:
Similar problem, can't find the scroll to unlock the path.

Anyone did this?

Mines:

You are at the spot where she summons 3 Dk on you right?
Don't fight them, run (in combat, not with the escape function) up the stairs further into the mine, you will find a teleport mirror.

The rest is up to you.

where did you find the Leandra's blood?

It is in a Immaculate dungeon / church / chapel to the north west of Sacred Stone (the Immaculate village) which you come to after completing the trials given to you by Loic.

I haven't figured out a way to get to the actual blood myself, but it's in there, hidden by a puzzle or some sort.

Yea i just figured out the puzzle.. its very tedious :*( and irritating puzzle

If you don't mind me asking, how did you solve it?

If i remember correctly think its
1- Button next to the compass on top of the stairs
2- directly north of the first button, in the middle of the room.
3- button on the left side of the room
4- right side of the room

If that's wrong.. try switching up 3 and 4. lol I solved it last night and got the hell out of there don't quiet remember which order.

Troll King Solution: