Abby Schrage of Highland, Ill., celebrated the completion of one round of cancer treatment at St. Louis Chldren's hospital over the summer. Waiting for her at home when she was done was a prized picture and autograph of her favorite baseball player: Anthony Rizzo. He even sent her a letter.
"He had childhood cancer himself, that's a great inspiration to show her when you are done with this battle nothing can stop you," said Jill Schrage, mother.
But Abby returned to the hospital for a bone marrow transplant in September, and over the weekend, the picture disappeared from her hospital room.
"We scoured the room, moved all the nurse carts, we even checked the hallway," Schrage said.
The hospital is checking its security cameras for clues but now, thanks to Rizzo replacing the photo and autograph, Abby can concentrate on her treatments. Rizzo also sent an autographed jersey upon hearing the news.
She received them Wednesday afternoon.
CNN contributed to this report.