Yes this will be fun!
I thought about it a bit more since the other night, and I think that we could dash in a little revenge into this story.
What I'm thinking is, since Antigone is not fond of Alucard, she could be breaking into his manor, looking for blood. Simultaneously, Rainn could be looking for a specific piece of Alucard's fortune. They could run into each other, both thinking that the other is working for Alucard and they could have a skirmish of sorts before encountering the real guards and working together to escape with their lives.
How does that sound?