50th Anniversary Variant. Published with a digital code that may no longer be redeemable from the publisher. Do not purchase with the expectation that the code is still valid. THE SIGNAL' - Prelude to Infinity • All of the Origin Sites go active as the Earth begins to communicate with something much more ancient than human civilizations. • The Terror scientists of A.I.M. unveil the S7 program. • Prelude to INFINITY: Part One. $3.99 cover price.