Books: Safeguard, Pursuit, & Entrapment
Friendship, danger, and a drive to prevent Asgard's fall at all costs.

One Ragnarok threat is eliminated, and another creeps to the surface. Loki's three monster children, Fenrir, Hel, and Jormungandr, writhe within their realms, a stirring that threatens Asgard’s downfall. 

Under Thor's leadership, it's Kara's new task to squash their actions before it is too late. Harassed by a Ratatoskr's insulting messages, this young, wingless Valkyrie and her dragon face all odds to save their world. 
To succeed in an epic mission, Kara's sacrifice will be colossal. 

Can this dragon rider and her dragon save Asgard, and what must they lose in the process?
Safeguard
Her best friend is on death’s door, and respite lures a dangerous predicament. 

Life after the Valkyrie Academy is interesting, to say the least. Kara’s new role as Thor’s dragon rider lacks the battles she expected, yet keeping up with the loveable brute is entertaining in ways she least imagined. The urge for purpose is satisfied when Loki’s estranged children learn of his duress and work to shatter Asgard’s peace. 

Monsters wreak havoc from several realms. The only chance of defeating them lies in a concocted effort between dragons, gods, and Valkyries. Kara’s participation veers as she races to find a means to save a friend.
Pursuit
Beware of the company kept. All may not be as it seems. 

The threat from Loki's monstrous children remains, as Odin had predicted. With the trickster father at large, only one path remains—the mother must be sweetened. Perhaps a little chat with a frost giantess will go smoothly, and she will happily control her children, right?

Desperate to delay the onset of Ragnarok, Kara must enter Jotunheim and face the danger of the frost giants to seek Angrboda’s help. The outcome could go either way, considering the giantess dislikes all Asgardian gods except for her beloved Loki.
Entrapment
Protecting friends is deadly. 
It's happened. Hel has sent her minion to attack Asgard, or so Kara thought. She and Elan are entrapped and dragged into the depths of Muspelheim, the land of the fire giants, bringing a whole new meaning to “warm welcome.” In an attempt to retrieve the information Kara holds, creatures that live only in nightmares surface, threatening Kara's freedom and life.