In the vast desert wasteland lies the ruins of an ancient city destroyed by an unknown force. In the foreground, a regal figure clad in yellow robes stands, tentacles as feet, brandishing a scepter with an eerie blue glow. His face is obscured by a haunting mask, adorned with twisted and sharp features. You can almost hear the echoes of his chilling laughter as he surveys the desolation in the background. From the shadows, a voice whispers: "Hastur, the King in Yellow has come." Generate an image capturing this ominous scene.