The German-born performers' long-running "Siegfried & Roy" production ended in October 2003 when Horn was critically injured on stage by a tiger.
"A good magician never lets the cat out of the bag," Horn told the Las Vegas Review-Journal on Friday for a story about the pair's possible return to show business. "Act surprised when you hear about it."
The tiger sank its teeth into Horn's neck and dragged him off stage in front of a horrified audience at The Mirage, ending one of the most successful casino shows in Las Vegas history.
Siegfried, 68, said retirement has had its hurdles.
"The stage is my life. It took some adjustment. I was really not ready for it," he said.
Siegfried said he marvels at Horn's dedication to his recovery regimen, which includes daily rehabilitation and trips to a gym three times a week, including games of racquetball.
"It cheers me up," Siegfried told the newspaper. "All the doctors say what he's doing now is impossible. I've always said, `I am the magician and Roy is the magic.' And Roy shows me every day the magic the magic of life."
Horn, 63, gets a boost from visits to his family of animals at The Mirage, including Montecore, the white tiger that attacked him.
Horn and Siegfried remain convinced that Montecore sensed Horn was having a mini-stroke and was dragging him to safety, rather than attacking him.
"I hang out with my lifesaver," Horn said.