Mountain Skirmish

So, it turns out that even if you don't know what a person's actual name is, you can assign nicknames on your reticule. So, in this case, if a kobold has an ultraviolet marking...

I'm pretty sure I've explained that. Okay, think of color as a particular stretching of light. On one end of the visible spectrum are bands that are warmer but less stretched. These are sometimes called thermal or heat bands, or infrared. <1 >

On the other end is the ultraviolet type of colors, which are the ones that look black to normal vision. For the most part, kobolds are without markings, but when they have them, they are in the ultraviolet range, which kobolds can see. A quick evolution from kobold eyes, and I could also tell who was whom, whether they were cooperating with names or not.