Power Man and Iron Fist were two of the first superheroes to befriend Rom the Spaceknight, who came to Earth to defeat the shapechanging Dire Wraiths. Seeking further assistance, the trio journeyed to the Baxter Building, headquarters of the Fantastic Four. But how could they be certain that the Fantastic Four weren't Dire Wraiths in disguise?
As a test, Mr. Fantastic would have to recall how much Power Man was paid during his time filling in as a member of the Fantastic Four. A text box within the issue confirmed that Mr. Fantastic answered correctly but didn't print the dollar amount for readers to see (Rom #23). As much as I would have liked to have learned the answer, that information was apparently too sensitive to publish.
Rom. Vol. 1. No. 23. October 1981. "The Thing From Outer Space!" Bill Mantlo & Sal Buscema (writer - storytellers - artist), Joe Sinnott (finisher), Rosen & Zalme (letters), Ben Sean (colors), Al Milgrom (editor), Jim Shooter (prime editor).