"Scorpius, do I really need to explain to you – uber geek and Potions expert – what Polyjuice does? Thanks to Delphi’s brilliant preparation work, we are going to take this potion and be transformed, and thus disguised we will be able to enter the Ministry of Magic."
-- Albus Potter (CC1.16)
A basement in a London building where Albus Potter, Scorpius Malfoy, and Delphi transformed themselves with Polyjuice Potion before stealing the Experimental Time-Turner from Hermione Granger’s office at the Ministry of Magic (CC1.16).
- The Polyjuice Potion ingredients were stolen from Hogwarts by Delphi; Headmistress McGonagall told Hermione Granger some things were missing, but she mistakenly figured it was just Peeves playing tricks (CC1.12).
- Delphi transformed into Hermione Granger, Albus into his Uncle Ron Weasley, and Scorpius became Harry Potter (CC1.16). They planned to steal an Experimental Time-Turner from the Minister of Magic's office so they could go back in time and try to save Cedric Diggory from Voldemort (CC1.14).
Whitehall is the name of a London road running from Trafalgar Square to Chelsea, lined with government Ministry buildings and monuments. Often the entire area is referred to as "Whitehall."