Meanwhile, in the mountains outside Grindelwald's headquarters, Credence was so overcome with emotion about being on the path to discovering his identity that it compelled him to sing epically about his entire situation. All the while, he ran around the spectacular landscape, and twirled as though he were wearing a flowing dress.
"Oh, I must know who I truly am, and this is more important than jam," sang Credence, who was not good at improvising lyrics on the spot.
"Is the singing really necessary?" asked Vinda, who had been tasked with watching him. She had already thrown up twice due to his nauseating lyrics.
"Is this where I truly belong?" he sang. "Are these the people I should be among?" And then, Vinda's ears bled from hearing that painful forced rhyme.
Suddenly, a Patronus snake flew up to where they were because it turns out Grindelwald has a Patronus even though Snape was the only Death Eater to have a Patronus. This is canon now.
"I need you both to come back inside," the Patronus said in the voice of Grindelwald. "We've just received some valuable new information about the Toenail of Icklibõgg."
"Finally, the singing will be over!" said Vinda, but Credence only continued to sing as he skipped down to Grindelwald's random castle.
"Is this truly my destiny?" he sang. "Is Grindelwald right about my pedigree? Am I Dumbledore's brother, or someone other?"
"SHUT UP!" Vinda shrieked. "SHUT UP, YOU LITTLE TWERP!"
"Oh, why doesn't Vinda seem to like me?" he sang. "After all, I have no problems with she!"
"All right, that does it!" said Vinda, raising her wand. "Oscausi!"