Vanishing Compassion

Obake is only 8 when his father is killed in an oil fire accident. Having no money, no mother, (she left when he was two), he began to work for Professor Grandvill as a sfit janitor. He reaches twelve and she decides to allow him to begin schooling at sfit!Unfortunately, his mother randomly decides to show up and take her son back home with her in California. Full of rage and anger, Obake decides to make a potion that makes humans disappear. It works, and his mother is the first to go. Professor Grandvill has no idea what her student, "Bob" is creating and allows him to continue his work. Slowly, everyone who disagrees with him, bullies him, vanishes. No one understands what's going on. Then there is the accident at sfit (the big explosion), and Obake runs away from the hospital he was sent to, glad to have lost his compassion. But compassion is back in the air when his childhood best friend, Christine, shows up at his door, broken and in need of a friend. Will he allow her back in? Or will she vanish too?