For other uses of 'Kayla,' see the disambiguation page.
Kayla was the Weaponsmaster in the time of Herald-Mage Vanyel. She had several assistants, including Duke Oden, who became Vanyel's trainer. Though it has always been assumed that she was a Herald, this has not been specified.
Physically-speaking, Kayla was "redoubtable." Vanyel describes her:
"From the crown of her head to the soles of her feet she was nothing but sinew and muscle. Her black hair, tightly braided to her head, showed not a strand of gray, despite the age revealed by the fine net of wrinkles around her eyes and mouth. Those gray-green eyes didn't look as if they missed much. For the rest, Kayla's shoulders were nearly a handspan wider than his, and her wrists as thick as his ankles." (Magic's Pawn)