I think that you really need to focus on the idea for speculation on possibilities for this one, as half of the answer. I suggest Robert Frosts 'The Road Not Taken', as it presents itself with a 'what if' scenario. Ties in nicely with the imaginative journey, and uses colour imagery...
Hey I am doing Enders Game and I need three supplementary texts (of different forms) to analyse. I was wondering if someone could help me with some examples, and a quick overview of how it relates to enders game?