Rosalia Aguilar Solace

"Helia has served as the Sage of Hope for the Great Library of Tomorrow for centuries. But even her hope is tested when she and her partner, Xavier, are confronted by a deadly figure known to them as the Ash Man. With the Ash Man gaining strength, Helia soon finds herself in a race against time, searching for clues to defeat their foe."-- (source of summary not specified)