Bedtime Story upset the script when getting the better of strongly-fancied stablemate Giselle in the Irish Stallion Farms EBF Fillies Maiden at Leopardstown.

Both of Aidan O’Brien’s debutants are impeccably-bred daughters of Frankel, but the latter carried more confidence as the 8-11 favourite, with Ryan Moore on board.

However, Moore never quite looked comfortable on Giselle, who is out of Breeders’ Cup Juvenile Turf winner Newspaperofrecord, and despite staying on well enough, she had no answer to the late surge of 5-1 shot Bedtime Story.

The winner, herself out of dual Nunthorpe victor Mecca’s Angel, who has already produced one classy offspring in Content, put in a more professional performance under Wayne Lordan and quickened up to score by a length and a quarter.

O’Brien’s representative Chris Armstrong said: “They are two lovely fillies going forward. There wasn’t much between them at home, and it was a tough choice for Ryan.

“Both fillies were quite green through the race and Wayne’s filly probably got an easier run at it.

“Before the race, they were both in the mix for the Chesham and you can’t really take much away from Ryan’s filly. We’ll see how they come through it and at the moment they are both in the mix.

“Wayne said when she steps up in trip again, she will be a fine filly for the backend.

“She has plenty of class and has an unbelievable pedigree.”