"We named our colonies after noble gases. We thought they would be the end of our history of struggle. Our final destination. And, like most human predictions, that one aged like milk." - Tenzar "Ten" Borin. Everyone in the galaxy has taken sides in the Planetary Kingdom of Argon's brutal war with the United Stations of Xenon, resulting in a bloody stalemate. Princess Reynara Montanlast may be the key to peace, but she doesn't remember that. She doesn't even remember her own name. Stuck underground while she recovers from an assassination attempt, Rey must piece her memory back together while reckoning with the insidious force that has infiltrated the bunker. She is aided only by her childhood friend, Ten, whose motives are murky at best. ARGON'S HEIR is equal parts survival thriller, space opera, and YA romance.