This book is on pre-order until restock arrives. 
 
The Valkyrie Covenant (The Valkyrie Duology #1) by JA Townsend:
 
Lost and alone, Lena longs for two things: a place to call home and friends to call her own.
 
After discovering a mysterious family heirloom, Lena is transported to Idirhalla—a realm created by Odin and ruled by the Valkyrie Queen. But Idirhalla, once a paradise for Odin’s immortal warriors, is on the brink of ruin, plagued by catastrophes that threaten to destroy all realms, both human and magical.
 
As Lena uncovers the secrets her parents left behind and grows closer to the man of her dreams, she learns that her new friends and her new world depend on her to claim her birthright. To save Idirhalla, Lena must embrace her powers and lead a rebellion against those who put her on the throne.
 
In a world where only the strongest Valkyrie rules, Lena must find her inner strength—or risk losing everything she’s come to love.