LitCharts assigns a color and icon to each theme in Harry Potter and the Cursed Child, which you can use to track the themes throughout the work.
Parenthood
Time, Mistakes, and the Past
Friendship, Family, Love, and Bravery
Reputation and Expectation
Death and Sacrifice
Summary
Analysis
Outside the Ministry of Magic, Albus thanks Delphi for her amazing prep work on the Polyjuice Potion so that they can get into the Ministry of Magic. They each take the potion: Delphi turns into Hermione, Albus turns into Ron, and Scorpius turns into Harry. Scorpius enjoys the drama of acting as Harry and telling Albus to go straight to his room; Albus laughs at the impersonation. The trio then heads into a telephone box together and dial 62442 before disappearing into the floor.
This exchange between Albus and Scorpius illustrates how heartening friendships can be even when discussing difficult topics. Scorpius is able to joke with Albus about Harry’s harshness as a way of helping Albus feel more understood and able to face his problems with his father.