Editeur Du Gite announced himself as a Champion Chase contender with a heroic performance in the Albert Bartlett Clarence House Chase.
Gary Moore's nine-year-old was not in the original line-up for the Grade One contest when it was due to be run at Ascot seven days ago and was only added into the mix when connections stumped up £2,250 to supplement him for the rearranged race on Monday.
The contest was seen as star-studded clash between Willie Mullins' Champion Chase hero Energumene and Alan King's Arkle champion Edwardstone in the build up and although the headline acts failed to land the spoils, the race more than lived up to its billing.
The 14-1 winner took up his customary front-running role in the hands of Co Waterford pilot Niall Houlihan and led the field along with the market principals willing to bide their time, Tom Cannon anchoring Edwardstone in rear with a target on Paul Townend and Energumene's back.
But as was the case at Kempton at Christmas when Editeur Du Gite snatched the Desert Orchid Chase from the front, he was still striding on strongly when the field turned for home and alarm bells started to ring for the major players.
Townend required a big leap from Energumene to have any chance of victory at the last and when the Tony Bloom-owned nine-year-old put down, it left only Edwardstone to chase Houlihan and his willing mount up the Cheltenham hill.
Although Cannon edged his way to a narrow advantage with the line looming, Editeur Du Gite fought back just in time to secure a gutsy head success.
It was an emotional win for connections who tasted Champion Chase success with Sire De Grugy in 2014 and their latest two-mile chasing star was cut to 5-1 with both Paddy Power and Betfair for that Cheltenham Festival championship race
Elsewhere at Prestbury Park, Ahoy Senor put himself in the Cheltenham Gold Cup picture when securing an emotional success for Lucinda Russell in the Paddy Power Cotswold Chase.
Runner-up in the Brown Advisory Novices' Chase on his only previous visit to Prestbury Park, the eight-year-old had struggled this season in open company and was winning for the first time since taking the Mildmay Novices' Chase four starts ago.
Derek Fox was content to track Bryony Frost and Frodon on the first circuit and although Sounds Russian shot clear during the second lap of the New Course, a juddering error from Ruth Jefferson's charge four from home gave the pack chance to close the gap and most crucially Ahoy Senor the opportunity to ensure an all-northern finish to this Grade Two contest.
Neck and neck jumping the last, the duo were soon embroiled in a terrific tussle up the Cheltenham hill with Ahoy Senor prevailing by one and a half lengths and Grand National hero Noble Yeats a further length back in third.
