The Will of Yggdrasil Books in Order

The Will of Yggdrasil follows Madeline, usually called Maddy, a woman whose gift feels more like a curse. People have died by her hand, even when she was only trying to comfort them, so she has built a life around distance and damage control. Then she is kidnapped and taken into a hidden realm where corpses rise on their own and old gods still cast very long shadows.

That is where Roethle starts widening the lens.

Maddy learns she is tied to the Vaettir, and suddenly her private fear becomes part of a much older struggle. Sophie, a familiar figure from her past, reappears under deeply unsettling circumstances. Alaric, dangerous and hard to read, becomes both temptation and complication. Before long the books are chasing a magical charm powerful enough to change everything, and Maddy is no longer just trying to survive. She is trying to understand what role she plays in a fight that was already in motion before she was born.

The series pulls together a lot of what Roethle does well. There is romance, but it sits beside necromancy, myth, time-slipping, and arguments with gods. Mikael, the ancient Viking who enters later, pushes the series into even bigger territory, because the conflict stops being only about hidden courts and starts touching fate itself. By the time Yggdrasil enters the picture, the books are dealing in worlds, not just one underworld.

Maddy stays at the center of it.

That is what keeps the whole thing grounded. She is frightened, stubborn, angry, and frequently unsure whom to trust. That makes the mythic material easier to hold onto, because it is always passing through someone who still feels human. If you want dark fantasy romance with Norse flavor, high stakes, and a heroine whose greatest threat might also be her greatest use, start with Fated and keep reading in order.