Kevlar was a member of The Black Bonfire who with his two Blackfire guards explored the undergrounds beneath the Kineater Gorge. In his travels he met and halfway befiended the Champions of the Ankh. As a young boy he was a orphan in Thronestep and had discovered that his elven parent hailed from Laru'hvel, There he was brought in and studied under the conjuration wizard Telethere Aspenstar and had joined the black bonfire either before or after her death.
He had claimed some of her research on Essence Melding for him and seemingly improved upon her writings, making him a formidable fire mage.
He was slain by the Champions by a entrance to the Underdark after Obsidian failed to seduce him and revealed herself and the party as enemies to the black bonfire.