Wesley was in shock. The traveller had always seemed like a kind friend. "What are you doing?" He shouted, although he did not know who or what was around him.
The Traveller's voice rang outloudly all around Wesley. "Wesley, now that you are more powerful, and have more energy in you, it is time."
"Time for what?"
"Consumption of course. We search the universe, on several different dimensions, and when we find someone special like you, we must feed. I brought you here to train you because it makes you mre powerful, and more... nutrious for us."
Wesley felt a sudden, searing pain everywhere. He could feel himself growing weaker and weaker. He felt like everything inside of him was being drained slowly. His awareness of the nothingness around him and of his pain was lessening. He knew that that was the last bit of life left in him, and that there was no way to escape. The pain was so great he almost wanted to die, but was too afraid of the idea of being diminished to nothing. Those thoughts of fear were his last before he was completely drained of life.
The Traveller brought Wesley's lifeless body to a planet in a distant galaxy to give it to the carnivorous animals to eat, and then he went around to another dimension to find more prey.