Calling the King: Puzzle M18

KR-M18 Puzzle

Your group plays Kontra and the capture bonuses. P1, the Forehand, plays the Call, calls the King of Hearts and announces the Trull. You are P3, and you hold the Pagat.

P1Forehand and Declarer
P4Dealer

Your hand

Tarok ITarok XVIIITarok XIITarok VIIKing of DiamondsQueen of SpadesJack of SpadesTwo of HeartsThree of HeartsTen of ClubsSeven of ClubsFour of Diamonds

You kontra only an item you can be sure must fail. Do you say Kontra on the Trull?