The Ireland that wears the Six Nations crown finally turned up this morning in mastering France 26-14 at Lansdowne Road.
Armed with easily their best performance of the championship, the Irish will finish in Cardiff next weekend with an outside chance of retaining the title against Grand Slam-chasing Wales.
The Irish were shattered by England in their opening-match defeat and struggled to piece themselves together against Scotland and Italy, winning only because their opponents were even poorer than themselves.
Everything finally clicked in place as Ireland dominated France to earn a bonus-point fourth try inside an hour and lead 26-0.
That was the point when halves Conor Murray and Jonathan Sexton, the front row of captain Rory Best and props Tadhg Furlong and Cian Healy, and lock Iain Henderson were taken off to be saved for Wales.
The substitutes missed more scoring chances to give coach Joe Schmidt and captain Best an even better send-off in their last home Six Nations match, and dropped their guard to let France score two converted tries in the last four minutes.
The scoreline still flattered France.