The thought came to me as I slept. Should I worry that my genius rises when I am defenceless? Rasmodel would do much with that information.
You see, nothing enthralls a demon more than other demons. They despise and bicker, drawn into a game of spite. It may seem like repulsion, but in truth they are drawn to one another. They live - should you call it living - to be in each other's company.
Knowing this to be true, I think on my skills of possession. I am still mastering the art, but there have been breakthroughs. I am able to siphon a soul from the living and store it in the inanimate, just for a moment. My goblet gained the soul of a slave (and filled with tears! A delightful discovery). My mirror reflected only my last, sycophantic apprentice, for a time, at least.
If I could bottle and transpose the soul of a demon - or whatever makeshift thing they have as a soul - could I infuse a demonic gateway? My theory, my hope, is that the gateway would enthrall others of their kind. They would be drawn, consciously or subconsciously, in numbers that we could barely contain. A portal like that would need an incredible number of demonic souls to keep powered, but, in that respect, I am not worried. The infernal gate would supply itself.