“Film. Shots you took of local sights on Mars with a rented movie camera.” To Quail he displayed those, too. “Plus the names of people you met, two hundred poscreds worth of souvenirs, which will arrive—from Mars—within the following month. And passport, certificates listing the shots you received. And more.” He glanced up keenly at Quail. “You’ll know you went, all right,” he said. “You won’t remember us, won’t remember me or ever having been here. It’ll be a real trip in your mind; we guarantee that. A full two weeks of recall; every last piddling detail. Remember this: if at any time you doubt that you really took an extensive trip to Mars you can return here and get a full refund. You see?”

“But I didn’t go,” Quail said. “I won’t have gone, no matter what proofs you provide me with.” He took a deep, unsteady breath. “And I never was a secret agent with Interplan.” It seemed impossible to him that Rekal, Incorporated’s extra-factual memory implant would do its job—despite what he had heard people say.

“Mr. Quail,” McClane said patiently. “As you explained in your letter to us, you have no chance, no possibility in the slightest, of ever actually getting to Mars; you can’t afford it, and what is much more important, you could never qualify as an undercover agent for Interplan or anybody else. This is the only way you can achieve your, ahem, life-long dream; am I not correct, sir? You can’t be this; you can’t actually do this.” He chuckled. “But you can have been and have done. We see to that. And our fee is reasonable; no hidden charges.” He smiled encouragingly.

“Is an extra-factual memory that convincing?” Quail asked.

“More than the real thing, sir. Had you really gone to Mars as an Interplan agent, you would by now have forgotten a great deal; our analysis of true-mem systems—authentic recollections of major events in a person’s life—shows that a variety of details are very quickly lost to the person. Forever.