Well, he thinks, I'm not sure what to make of this.
His glowing indigo eyes, now inside the sphere of creative energy, sense four distinct entities, but they seem worlds apart. Straining his Vision's focus, he studies them in turn; quickly, but leaving no detail out of his sight. He concentrates on looking them over in detail only, not bothering with trying to memorize anything directly; the enchantments on his Tome will record his thoughts for him anyways, the perfect memory protection and recall available. Without it, he could never have memorized the sheer number of calculations needed to send himself between worlds with a single specialized spell.
However nice that would have been, not getting myself lost in time and space because I was too eager to try out a spell I helped Master Adalbert uncover in those lost archives. The thought crosses his mind, but it is promptly pushed out as soon as it formed, with another thought, repeated almost like a personal mantra; Focus, dummkopf.
One person was still in one spot, moving to look at the door with some surprise, but no apparent urgency. Putting down her book, she seems to have furry ears and a tail for some reason, but otherwise seem to be perfectly human... to normal eyes, at least. Her aura, however, tells a different story: hers is strong, but not exactly full of inherent force or concentrated power. It has a sensation to it that Hriob might equate with mint or a chill, and is a light blue to his eyes.
Behind the bar of the room he senses a person. This isn't because he can see through the bar, but because the aura is very, very potent, yet almost completely blending into the surroundings. With a start, he realizes that this is because the signature of this orange-hued, subtle-yet-immense aura is exactly the same as the energy stabilizing the tavern around him.
So there's the person responsible. Amazing... I might have someone to learn from here, if I can manage it... and if they'll let me in on their technique.
A third person was also plainly visible, like the first. She was similar in that she too had fur-covered ears and a tail, very similar in shape too, but her aura was much different. This one Is potent to a similar level as the other two, but not in the same manner; where the other two had strength to them from their own essences, this only has a small portion form itself, a bright orange color with a lot of vibrancy... and distortion, as Hriob realizes that the person's aura is wobbling slightly, with the rest of her body, from a fair bit of alcohol in her system... nothing too much, he decides, but I'm not one for alcohol anyways. The rest of her power, he notes, seems to come from somewhere else, and is a pale, powerfully pure white with a mere hint of otherworldliness that suggested a more Holy source of strength. This major part of her aura is steady as a rock, and seems to actually glow to his Vision, despite making no presence to plain old sight.
And the fourth... was both impossible to miss, and hard to catch. At his feet as he opened the door he saw a mere cat, with his normal eyes, but his Vision...
This aura was unmistakably red to him, and had a blurry kind of constant distortion to it that suggested it belonged to someone with no purely distinct form. Shapeshifter, he thinks instantly, and a powerful one too. The aura was also impossibly strong, perhaps as strong or stronger than the one that was currently supporting the entire tavern's very existence, but somehow worn and weakened in essence; not so much from simple exhaustion, but from some sort of inner turmoil or uncertainty keeping itself from harmonizing to full force... for the moment.
The cat, somehow having two tails, merely meows. Then, it reaches out with a paw, and touches his thoughts in a way he could only do with his two swords.