Help! Trying to get soul eater!

[RuneScapeMan]

Im trying to get soul eater but now im stuck...
On gamefaqs.com someone wrote:

c) Next, do "Unsealed Door". To unlock this quest, you must have
passed "Dr. Osto's Research" and "Knowing One's Heart". During
your quest, FIND SUE IN MINES 2 AND TALK TO HER. Then proceed to finish
this quest.

But my problem is that i did Dr. Osto's research and a few minutes ago i did Knowing one's heart...
But I can't do unsealed door!!!
I know that I must do more quests but...
Wich???

[foamcup]

I think you have to do Secret Delivery. Check a guide to be sure.

[Elvendar]

Also, be sure you didn't tell sue your name. This is essential. If you told sue your name, you won't get the soul eater, but you get an alternate ending for a later quest.