Chris Studabaker 
Power of the Valkyrie: Chronos Edda #3 [EPUB ebook] 

As the Valkyrie’s fate draws nearer she seeks to understand the elusive nature of fate, the future, and ancient myths in which she has become entangled. In the aftermath of Kostr’s hospital attack Suzanne decides it’s time to be proactive in her fight, but Thor and Odin disagree. Shunning the Norse gods, Suzanne arrives at the great World Tree and finds a new level of clarity and confusion when she meets the three strange women who create the fate of all existence. Kostr, the demi-god who has foreseen her doom, arrives and Suzanne prepares to meet her fate.