Unleashing it was easy. Surviving it won't be ... Conan, Jack, Jerry and Yash barely escaped with their lives the last time they messed around with portals, demons and the powerful relic known as the summonstone. But when the chance to reunite with an old friend arises, they decide to use its ancient power one more time. Big mistake. What they summon is not an old friend, or even a new one. It's something mischievous, something monstrous – and now it's loose ...