Não há referências às pegadas (até onde eu sei) em quaisquer outras propriedades da UE, mas o círculo de terra queimada é mencionado no romances oficiais . Os dois trabalhadores do conselho; Javy e Ben voltam ao parque em várias ocasiões, na esperança de obter outro vislumbre de sua visão indescritível. Quando o navio finalmente decola, deixando apenas uma marca de queimadura no chão, eles decidem não contar a ninguém sobre isso, por medo de serem dispensados como manivelas.
"I saw it," Javy said. "I saw its shadow, anyway." "But, I mean, we would of seen it and we would of been able to show it to other people. To a reporter, maybe, and they'd write us up in a book and maybe we'd get on Johnny Carson." He brightened. "Maybe if we show them the burned place-"
"Maybe if we show them the burned place, they'll arrest us for arson. Or they'll write us up as a couple of nut cases," Javy said. "And maybe they'd be right. We don't have any proof. A burned place and a shadow."
"I'm really sorry," Ben said again, downcast. "Don't be, Ben, it's okay, honest."
"I'd be mad, if I were you."
"Maybe I ought to be," Javy said. "Except ... " He hesitated, not sure he wanted to say it out 'loud before he was certain it was true.
"What?"
What the hell. Telling Ben the story had always worked before. Javy grinned. "I figured out how to end my novel," he said.