The Witch of Heartbreak Square
When you present yourself at the tower, asking the Witch to perform a service for you, roll 2d6 plus your charisma bonus.
On a 7-9, choose 1 from the list. On a 10+, choose 3:
The witch performs the service you desire
She doesn't take a dangerous fancy to you
She doesn't look through your eyes into your inmost soul
She doesn't ask you to retrieve Mordante's clockwork heart first
Note that the Rune Tree is also willing to perform similar services, but always demands a sacrifice of some sort before performing it.