A Doctor Who fan exterminated other bidders to win actor David Tennant's original script from a Christmas special of the sci-fi show.
As soon as fan Daniel Simmonds heard about the auction, he knew it had to be his and paid 1,100 at a charity auction for the script from the Christmas Day show, called Voyage of the Damned.
It was signed by pop princess Kylie Minogue who also starred in the episode, which attracted 18.8m viewers and was the second most watched show of 2007.
Mr Simmonds, of Kettering, heard about the charity auction on a fan website and called in with a bid on the night.
It was organised by legal services company DLA Piper to raise money for hospices in Sheffield and Rotherham.
The 33-year-old said: "I'm thrilled to have secured the script.
"I'm a life long fan of Doctor Who and have been collecting memorabilia for more than 25 years.
"I saw the auction advertised on a fan site and knew I had to bid, particularly as both my children are now massive fans of the show too."
Voyage of the Damned saw the time-travelling hero save a space version of the Titanic from crashing into Buckingham Palace.
Kylie Minogue played a waitress and the Doctor's love interest.
Richard Norman, from DLA Piper, helped to organise the fundraiser.
He said: "Daniel was a phone bidder on the night and I'm really pleased that a true collector and fan of the show has secured this script, raising lots of money for charity at the same time."
On the same night as the auction, the Sheffield branch of the company also held a life-sized monopoly event on Sheffield's streets.
Together the events raised more than 11,000 for charity.