Discover the secret history of the war that may (or may not) have happened: a time of strangely enhanced soldiers, more machine than man; a twisted future-past of occult and technological development and intrigue; and a society where humanity struggles to maintain its increasingly fragile grip on reality (whatever that might actually be). In fact, a whole Crossover dossier's worth of useful Alternate Historical and fantastical information to help you expand your campaign out into the wider world of the Secret War.