The Assassin Princess (On Hold)

"Most princesses want a knight to come and save them.
Not me, I want a sword to save myself."

It's not easy being the world's most notorious-and most wanted-assassin. It's not easy being her kingdom's princess at the same time. And it's definitely not easy when you have power over the elements-a power that must remain a secret unless you plan to have the entire royal family executed.
But that's the life Cassandra has been leading. In the light of morning, she's a proper princess, all smiles as she meets the prince her mom, the queen, wants her to marry. During darkness of night, she's a brutal and ruthless assassin, killing off her enemies and those she doesn't know. And in the secrecy and isolation of her room, Cassandra is trying to control and contain her hidden powers.
Prince Magnus is your typical prince-caring, loving, smart, a warrior. The kind of prince who wants to escape from the royal life. But he's not the prince to a normal kingdom. Because, unbeknownst to him, Wrewen is a kingdom of secrets, hidden powers, an ancient history, and demons waiting to make their return.
When Cassandra discovers a dark, mysterious secret about her betrothed and his kingdom, Cassandra knows that everything is going to get worse unless she does something about it. Unless she fights back-magic or not.
As the world around them evolves and shatters, Cassandra and Magnus find themselves battling against enemies they can't fully understand, and loved ones they once thought they did. But, without even realizing it, they find themselves fighting for and against forces in nature, forces they've always taken for granted, forces that make up whole they are-namely, the force of Death Cassandra wears as an escape, and the force of love buried deep within Magnus.