The Wedding Ceremony

Odessa reluctantly marries Prince Zavier in a terse ceremony beneath Quentis Castle, signing the ancient Shield of Sparrows treaty with their blood, sealed by Voster magic that binds their fates and enforces peace between kingdoms.

Outcome

The marriage is magically binding, though Odessa remains unaware that Ransom (the Guardian) has actually married her using his own blood and voice, not Zavier's.