New rules and two complete adventures for use with Psi World. The original designers of the game offer a new major discipline, several new minor disciplines and two adventures for both psionic and non-psionic characters. Included in 'The Hammer Shall Strike' are: New Talents (rule expansion) Transition (adventure) The Hammer Shall Strike (adventure) New abilities and two complete adventures for psionic or non-psionic characters in Psi World.