Across from you by Chani Lynn Feener

When a routine surveillance mission goes wrong and the mark is brought back to her world, Black Spade, Charlie Saxe’s life is thrown into turmoil. She has always had to prove herself to the council and her adoptive Father the leader of the royal security guard in Counterpart and now she has not only her life on the line. As circumstances around her become tense and those whom she can trust become few, she has to balance her duty to Umbra against her loyalty to the royal household and her childhood friend.

Kav has been pulled out of his cushy high school life and thrown into the political drama of another dimension. Things are different but at least now he can come to know the girl he has had a crush on for the last couple of months. Plus, he is having the adventure of a lifetime.

Ace, the King of the Underworld grew up with Charlie, or as he calls her Little Lie. When she comes to him seeking safety he cannot help pulling her into his life again. He promises to help her, but accepting his help could put her in jail.

As Charlie has to make sense of the betrayal and lies she must discover the truth and decide where her loyalty lies as well as where her heart is heading. It cannot be good.