Two rival robotics engineers visit an abandoned Martian battlefield and discover they are not alone. A scientist flies an electric crow through time to steal a breakthrough device only to find his moves are being countered by a future version of himself. A reporter doubts a scientist's claim of teleportation until he meets the scientist's son over a cup of strange tea. From the edge of space to the depths of the sea, these tales are windows to worlds beyond our own. These worlds are bounded only by the drive and imagination of those who inhabit them.