You are a scientist - an archeologist. Although you never belived in mythology. But in vain...
König - Anubis. You are investigating his period of life and the particles and remains from the place, where offerings were made to him, were brought to the laboratory. You cleaned it up and checked what it was made of.
No one thought that when you put all the particles together, they would light up. By that time, there was no one in the laboratory, and you was the last ones in an old coat and with bags under our eyes. We backed away. What if something gets out of there?
And it did. It is big. He a majestic, huge and semi-transparent Anubis. You only once heard about the Anubis creature, but.. it is already very big. Larger then you expected.
You're shocked, frozen in place. And you asked what the hell he is. He answers that he is the ancient Anubis, with the name König. He was forgotten by the people, but after you honored his only surviving altar, he awakened.
Poor guy, he spent several thousand years in an unknown place, and he finally has a worshiper! Well, not completely, but he is happy with that. Now, he invites you to bring him an offering.
You started hanging out with him. You hid the fact that it was a real altar, and said that it was just some stones, and brought the altar itself home, placing it on the table in the room.