The Gallow Glass by Brian Keaney
In THE HOLLOW PEOPLE, Dante the kitchen boy found that he had the power to manipulate Odyllic Force to confront the evil force that was behind Dr Sigmundus. Now, we meet Dante's nemesis: his evil twin Luther. Luther is being manipulated to do evil in the name of Dr Sigmundus, and only Dante can stop him. Meanwhile, Dante's best friend Bea, is being held captive in a sinister institution, forced to take the drug Ichor, which represses all individuality and creativity. When Dante sets out to save Bea, he has to make a terrible choice.