Silent Shield (Shieldmaiden Squadron‪)‬

Shieldmaiden Ingrid Tirsdatter is in the final leg of her very first mission. After chasing a dark mage one thousand years into the future, she and her team have spent the past two months trying to stop him from doing the unthinkable—enacting a magical spell that's certain to destroy their world. But when a collection of crystals goes missing, it's clear their enemy is making his final play. And when Axel starts acting peculiar, Ingrid realizes that more than just their home is on the line. If she and her team can't stop the dark mage, her past—and her future—may disappear forever.