"The Possible Boy"
A tentative attempt at time-travel ends with the skyscape looking all purple and green. The root architect of this is an old friend and foil, the Impossible Man.
Impy has this little problem he wants off his hands.... his son, Adolf. Like all good Samaritans, the Future Foundation agree to take Impy junior under their collective wings.
Baxter Building way, newly-freed Maximus alleviates his boredom by dismantling a H.E.R.B.I.E. robot. Ben Grimm would be so proud of him.