Star De Mohaison, trained by Paul Nicholls and ridden by Barry Geraghty, won the Royal & SunAlliance Novices' Chase at the Cheltenham Festival.
Always travelling well for Barry Geraghty, the 14-1 shot was in the lead but being challenged by Back In Front coming to the second-last.
That rival crashed out to leave Idle Talk the only serious challenger but Star De Mohaison was not for catching and powered to a six-length win.
Darkness, who never jumped well at any stage, stayed on from another parish to finish a further 11 lengths back in third.
Idle Talk was always disputing the lead as Geraghty settled Star De Mohaison in behind but the race lost some of its lustre as the well-fancied Our Ben unseated Walsh at the third.
There was a further blow for punters when 9-2 favourite Commercial Flyer was pulled up before the fourth-last, while Ardaghey crashed out at the ninth.
All the while Star De Mohaison was travelling stylishly but Back In Front had looked ready to make a battle of it coming to grief two from home.
He blundered through the top, however, impeding Bewleys Berry in the process, with Bold Bishop unseating McCoy after getting mixed up in the trouble.
The Listener was another to come to grief, all of which left Star De Mohaison to lead home 33-1 shot Idle Talk and give owner Sir Robert Ogden a second success in as many days following Voy Por Ustedes in the Arkle.