Sirius Black had missed the best chance to kill Peter Pettigrew, and he was nearly driven mad with rage.
Now that Peter Pettigrew had successfully turned into a rat and slipped into the sewers with Voldemort's help, he had completely vanished. No matter how furious Sirius was now, it was useless.
Liquid Luck told him that after making such a huge fuss only to fail to corner Peter Pettigrew, the Dutch Ministry of Magic might lash out in humiliation and come after him.
Sirius had considered staying to keep searching for Peter Pettigrew, but he quickly gave up on the idea because there was no point.
After escaping into the sewers, Peter Pettigrew certainly would not remain in the country. Who knew where he would hide?
Besides, Harry's second task was about to begin. Although Sirius had asked Remus to look after Harry before leaving England, he still felt he needed to return and keep an eye on things before he could rest easy.
In the end, urged on by Liquid Luck, Sirius examined Voldemort's infant corpse, took several pictures of the ugly, snake-faced baby, and hurriedly left.
As for Voldemort's infant corpse, Sirius did not pack it up and take it with him. He had to leave something for the Dutch Ministry of Magic; otherwise, they really would have gone through all that trouble for nothing.
After returning to England, Sirius immediately contacted Albert through the Two-way Mirror, informing him that the attempt to ambush Peter had failed and asking whether Albert had any channels for buying safe, reliable Liquid Luck.
As for buying Liquid Luck on the black market, he had better forget it. Who knew whether drinking that stuff bought from the black market would poison him?
"It failed."
Albert was genuinely a little surprised when he