**The chains of eternity have been broken. The Trickster God walks free.** Six months after defeating the Shadowborn cult, Bjorn Ironhide and his Valkyrie companion Astrid have retreated to the high peaks of the Cascades, seeking peace in their mountain sanctuary. But tranquility shatters when ancient enemies emerge from the mists of time. **Loki has escaped his eternal prison.** The Trickster God's freedom threatens to unravel the very fabric of reality. As supernatural murders plague Seattle and Norse artifacts vanish from museums across the globe, Bjorn realizes this is no random chaos-it's the opening move in a conspiracy that spans centuries. **Ragnarok is coming. And this time, it's real.** With Detective Sarah Chen pulled deeper into a world of immortal warriors and divine politics, Bjorn must confront the darkest chapter of his past: the blood oath he swore to Odin twelve centuries ago. As Loki gathers allies-ancient jötnar, corrupted Valkyries, and human zealots hungry for apocalypse-the immortal berserker faces an impossible choice. Honor his oath and trigger the end of all things, or break his sacred vow and face the wrath of the All-Father himself. From the rain-soaked streets of modern Seattle to the frozen wastes between worlds, from Valhalla's golden halls to the roots of Yggdrasil itself, Bjorn and Astrid must stop Ragnarok before the nine realms burn. But Loki has been planning this for a thousand years. And he's always three steps ahead. **"Epic Norse mythology collides with modern-day thriller in this action-packed sequel. Johansson delivers a rollercoaster ride through both ancient legend and contemporary darkness."** **Blood of the Berserker: Shadows of Valhalla**-when gods walk among us, even immortality may not be enough.