Age of Soul-Bonds : The Crimson Compact

Beneath modern city shadows, immortal vampire House Valentine and feral werewolf House Graham maintain a fragile millennial truce through their mighty business empires. To stop endless bloodshed, they arrange a political marriage: innocent pure-blood vampire princess Isolde to wed Kaelen, the werewolf heir haunted by his brother’s murder.

At their lavish engagement, Isolde spots sacrificial runes on the contract. This union is no peace deal, but a trap to sacrifice her. Trapped in the werewolf castle, she faces ostracism. Kaelen’s coldness is a cover to save her from assassins.

Strange murders bearing both clans’ traits erupt, and all evidence frames Isolde. She forms an uneasy alliance with Kaelen to clear her name. They uncover the clans’ ancient hatred is a lie. Isolde’s scheming sister Lia conspires with werewolf elders to take her place and seize the relic Moonblood Covenant Stone.

The deeper plot emerges: elders of both houses secretly colluded. The marriage exists only to activate the relic with their combined pure blood. In the finale, Aeld, a millennium-hidden seer, reveals everyone is his pawn for a resurrection ritual. The true war has just begun.