In addition to her Amazing Spider-Man 2 paychecks, Emma Stone is bringing in some extra money from an unexpected source. The actress, 25, stopped by the Late Show on Wednesday, July 16, and dished to David Letterman about how she has been adding to her pocket change. 

"There's a long family history with quarters," Stone said. "My grandfather leaves quarters. It's just amazing." 

"It's him!" she asserted. "It's absolutely him."

Letterman, 67, clarified Stone's story, asking the redheaded beauty, "This is your late grandfather, and you find a quarter, 'Oh, I bet that's from granddad?'"

"Yes," Stone said with confidence. "Who I never met! It's exactly like that. It's that. It's such a long story that you'd have to go to commercial five times and roll to a clip and then come back and I'd still be telling the story. But it's him! You guys, it's him."

While Letterman questioned supernatural encounters, explaining that he would hold more stock in them if there was any scientific proof, Stone stood her ground.

"That's the joy of it!" she exclaimed. "It's not a logical thing—it's magical." 

Watch Stone chat with Letterman about her ghosts in the video above!