×
Well, you do need to get the Slayer to step on the pressure plate for you.
The problem, of course, is how to lure the Slayer up there without stranding the seep somewhere from where it's inconvenient to get it back to the door.
You start by letting the seep get to the lower of the blocks in front of the door...
Click here to view the secret text
×
Then you hop on the platform and circle back around to the top. The seep should end up on the wall to the west of the door.
And then you should be all set...