Treve was a brilliant winner of last season's Prix de l'Arc de Triomphe but a defence of her crown was put in doubt when she flopped at Royal Ascot.
Criquette Head-Maarek's stable star was sent off a hot favourite for the Prince of Wales's Stakes but ran to a level well below her brilliant best when only third behind The Fugue, beaten two and three quarter lengths.
That performance, in tandem with a defeat to Cirrus Des Aigles on her seasonal reappearance, left many to question whether she could recapture her top form but Harry Herbert, racing manager for owners Al Shaqab Racing, has revealed that she is showing all the right signs at home.
"Treve is in great form having had a very easy time since Royal Ascot. She wasn't herself that day and I have rarely seen a horse move worse to post," he said in an interview with www.racinguk.com.
"Duncan Moir, Al Shaqab's vet, went over her with a fine-toothed comb immediately after the race and found that she was very sore in her back.
"She seemed very upset down in the pre-parade ring at Ascot that day and she kicked out very aggressively a couple of times.
"It may be that she pulled muscles doing that. It was a great shame because she had been working brilliantly at home."
All roads lead to Longchamp for the Motivator filly and Herbert believes that she could be hard to beat if arriving in Paris in the same form as last year.
"Hopefully she will be spot on for the Qatar Prix Vermeille and then the Arc. I am sure that she has trained on, and if she appears in top form on Arc day then it will take a very serious horse to beat her," he added.
In the immediate future, Herbert will be on duty at Glorious Goodwood where another of Al Shaqab Racing's stars will be in action.
Toronado made a successful return to action at Royal Ascot and is set to reappear in the QIPCO Sussex Stakes at Glorious Goodwood where he is scheduled to come up against St James's Palace Stakes winner Kingman.
"Toronado is absolutely flying following his terrific Queen Anne victory. That was another brilliant training performance from Richard Hannon and his team to get him fit enough, without having had a prep race," he revealed.
"He will head now to the Sussex Stakes to take on Kingman and defend his Goodwood crown. It promises to be yet another awesome Duel on The Downs!"