Portgas D Ace and a Boy from Nowhere

It was a normal day at The Moby Dick when it happened. Ace just finished his 'ritual' in 'trying to take Whitebeard's head' of the day, when The Boy appeared. "Portgas D Ace?" He asked. At Ace's nods, he continues "You're going to die. But You will be happy, so don't worry about it, yeah!" he smiled innocently. Ace only can blink in response. "What the hell?" Ace thinks.