Javan gave a small nod at her question about the existence of demons, they were very real once you had experienced one the way she unfortunately did. He then heard her ask him how he kept them out, just dropping the fact they much rather not be around an angel would give his secret away much to easy so instead he went for something else that worked. He walked over to a drawer and took out a stone, it was clear and round with a small glow. He handed it to her and said: "Well I placed these all over the house, demons hate getting close to these pure stones as I like to call them, they are hard to find but a few people sell them, keep it close, it will stop them from getting to close." The stones were harder to come by as humans didn't sell them, it was mainly only things angels could give to those they felt needed it.
Soon she asked about other species and he said: "Yes, many fictional things are more real then some think, I never came across anything else much bit demons but I am guessing that is just my luck." He glanced at the stone then said: "If you want to go outside or so, keep they close, you might see them but they won't go closer then ten meters about... also, others most likely won't see them, you would probably stop seeing them once the wound is healed."