Den of Liars

An aspiring thief attempting a daring casino heist during a high-stakes tournament is torn between two warring brothers in Den of Liars, a thrilling YA fantasy romance by acclaimed author Jessica S. Olson.
Be wary of my deceits, little thief, for at the Liar's Den, even your heart may make a glamour of truth.
Lola St. James is the world's best kept secret. When her father gambles away the knowledge of her existence in the Liar's Dice Tournament, she is rescued by the Thief, the notorious leader of a magical gang known as the Tentacles. But this kindness comes with a price: her heart.
Now, Lola and the Thief have a bond like no other, able to feel each other's emotions because of their shared heart. Determined to prove herself and become a full-fledged Tentacle, Lola undertakes a critical heist. When it goes sideways, the only way forward is for Lola to compete in the Liar's Dice Tournament herself.
Lola is confident in her ability to pull off any heist, but the Thief's mysterious brother, the Liar, runs the game and he turns out to be more than she bargained for. As her attraction for him grows and illusions run wild, she will be forced to confront the secrets of her past, the truth of the brothers' shared history, and the lies she tells herself.