Adventure Hunters: Similitude. Adventure Hunters, #1

Artorius, Regina, and Lisa, are three adventurers who explore ruins and ancient buildings looking for treasures. Most of the time, they're just trying to make ends meet. But when they explore a town rampaged by goblins, they get more than they bargained for. They uncover a cache of ancient war golems, powerful weapons of destruction once thought to be only myths. Soon, they are in a quest for the Lambda Driver, the key to the golems' activation.
But they aren't the only ones, and they will have to defy their own king to find it first. If King Ryvas has his way, he will unleash the golems' destructive power on the neighbouring kingdom. The trio's quest will take them from mountains to poisoned valleys and enchanted forests but they must hurry. Where is the Lambda Driver? What secret do the golems hold? And why does their friend Regina seem to be in the midst of it all?