Alakazam.Watch closely and see before – poof! – the hidden object is gone. Abracadabra, it reappears right in front of you. You know it’s all an illusion. The hand really is quicker than the eye but, as in the new novel “The Trick” by Emanuel Bergmann, the spell may take several decades.Max Cohn’s best friend, Joey, knew all about the problem.He’d been through his own parents’ divorce and so Joey told Max how things would go down at home.