When Captain Leah Arden, a skilled but emotionally guarded space pilot, is assigned to a diplomatic mission to the uncharted planet of Lyris, she's expecting a routine mission of intergalactic negotiation. But upon arrival, Leah finds herself in a world unlike any she's encountered, where emotions are more than just feelings-they're powerful forces that can be harnessed, traded, and even weaponized. The Lyrisians, a mysterious and deeply empathetic civilization, believe that Leah's visit could mark the beginning of a long-awaited alliance, one that hinges on more than political agreements.

Assigned a Lyrisian guide, Ryn, who is as captivating as they are enigmatic, Leah begins to understand that her mission will require something beyond diplomacy-she must confront her own guarded heart to truly connect with the Lyrisians. As they journey across landscapes filled with glowing rivers, forests that respond to emotion, and skies that reflect one's inner state, Leah and Ryn grow closer, unlocking emotions she'd long kept buried.

But as Leah's feelings deepen, she uncovers a looming threat that could destroy Lyris and disrupt the emotional balance that powers the planet. Mission to the Heart is a thrilling sci-fi romance about courage, vulnerability, and the transformative power of connection. As Leah faces choices that could save or doom an entire civilization, she learns that sometimes the hardest mission of all is opening oneself up to love.