After he decided to dedicate his life to the Lonely Mordechai Lukas invited Jonah Magnus to visit him in Moorland house exactly twice.

First time he only welcomed him and then made sure not to see him at all for the rest of his stay. He was just feeding on his loneliness while Jonah was frustrated wandering all alone through his home.

He invited him again few years later but he forgot to consider that Jonah has his own patron he serves and in those years he got much better grasp of his own powers. The entirity of his stay Jonah was just running into Mordechai because he Knew where he was. Of course Jonah always pretended that all of their encounters were completely accidental and what a coincidence it is to meet on some very unusual place Mordechai was hiding at the moment…

Mordechai never invited Jonah at his place ever again after that. (Which doesn’t mean he never actually visited him without invitation.)