Jain Gurden, a would-be tower raider, and his party of companions climb to the third floor of Tower 42. They encounter a seemingly normal slime, but it turns out to be much stronger than they anticipated. One by one, Jain's companions fall, and he is left to face the slime alone. In a moment of desperation, Jain unlocks a hidden power within himself and defeats the slime. He hears a strange voice in his mind, and as he passes out, he realizes that he has become something more than a mere tower raider.