Reign of Silver and Stardust (Book 1, Stardust Trilogy)

Trope Checklist: 

• Secret Identity / Imposter Undercover 
• Murder Mystery & Infiltration 
• Ruthless Immortal Elite Regime 
• High-Stakes Enemies-to-Lovers Romance
• Love Triangle

My twin sister was murdered. To find her killer, I had to die.

CATALINA

I was never supposed to survive. As the mortal spare to an immortal sister, I lived in the shadows until Ry was murdered by a weapon that shouldn't exist. Now, justice is all I want. To find her killer, I must take her place in the Queen’s Immortal Army and become the very monster everyone fears. But becoming a weapon means losing my humanity… and losing the one man I can't resist.

VALOREK

The immortals bleed my world dry while my sister rots from the inside out. I swore to burn their reign to the ground, until I met her. Sterling is the enemy—a fierce, silver-blooded warrior of the empire that destroyed my family. But the electricity between us is undeniable. We are on opposite sides of a divided world, and falling for the enemy is a dangerous mistake neither of us can afford.