Note From Granny is a written note found in Dishonored.
If you start keeping company with them or their so-called boss, you may fall out of favor with me. You wouldn't want that, would you?
You shouldn't fraternize with those bad boys from the distillery. That elixir hasn't improved their dispositions and they don't treat my birdies very nicely at all.
They're a bad influence and I'm trying to warn you. You've started falling out of favor with me, I have to say. You don't want to keep going down that road, do you?
It can be found during the mission House of Pleasure by the front door of the abandoned house of Granny Rags in the Distillery District. If Corvo did not attack Granny Rags in the mission High Overseer Campbell, she will leave him the friendly version of the note. If he did attack her, the last paragraph is more hostile.