[Kelson shakes his head, wishing not for the first time that he had more of a magical education and knew more.]

No. Not usually at least. Some humans can have magic like abilities turned on, but it's not common.

There are humans in an area of my kingdom who have what they call the 'second sight', but I honestly don't know if they really are just humans with the ability to assume limited magical abilities, or if they're descendants of Deryni who simply went into hiding.

[He paused.]

It was not a good thing to be Deryni in my kingdom for... a very long while. My own mother didn't know what she was until she tried to defend me with her own magic.

But your saying your....world? kingdom? is populated by humans who are capable of doing magic?