I also did considerable research into how identical twins behave, and the problems that can sometimes arise due to the fact that they are so close that they seem at times to be one person. This closeness makes relationships with adults and other children almost superfluous. What, I wondered, would happen if this closeness were taken a step further? The result can be found in the book, where the games of 'which one of us is which?' that many identical twins like to play at times take on a far more sinister meaning. Or do they? Are the twins normal twins, playing on their aunt's natural insecurities, or is there a dark supernatural force behind their behaviour? If so, is there anything that can be done to save the world from the darkness that may be controlling them?
I hope that people who buy the book enjoy it as much as I enjoyed writing it, and I'm delighted that it will now be available for the first time in paperback, and to a whole new readership.'