Harry Potter and the cursed child:
When Draco accused Harry of keeping Albus and Scorpius apart, Harry-A used the Pensieve to show Amos Diggory’s hidden memory to Draco B threatened to have Draco arrested for possessing a Time-Turner C revealed Sibyll Trelawney’s prophecy concerning Scorpius D told Draco that Bane had sensed darkness around Albus