A stolen ring of starglass can open any door, but the crown wants Briony silent. When reluctant prince Lachlan offers "beside," love becomes her only safe pact, and truth her most dangerous magic.Briony never meant to touch the starglass. In her city, truth is locked behind velvet curtains and royal bells, and a single rumor can ruin a life faster than a sword. But when a ring of starglass chooses her hand, it leaves her with an impossible gift and an even more impossible problem. The seams between places begin to listen. Doors appear where none should exist. And the crown decides Briony is the easiest culprit to blame for a power it cannot fully control.Lachlan has spent his life learning how to be steady, silent, and useful. As a prince, he knows what a story can do to a city, how quickly a lie becomes law when the right mouth repeats it. He should turn away from Briony and protect the palace narrative. Instead, he offers her one dangerous word, beside, and steps into a vow he was never trained to understand.Hunted by manipulation that sounds like mercy, pulled toward secrets tied to Aveline's disappearance, and guided by witnesses who refuse to be erased, Briony must decide what kind of pact she is willing to make. One that buys safety with obedience, or one that risks everything to keep love and truth free of chains.The Starglass Pact is a clean, closed-door fairy-tale romantasy filled with tender tension, reluctant loyalty, and a heroine who learns that the bravest magic is speaking what others tried to bury.