Answer:
Draco Malfoy, Harry and Ron were fighting with Malfoy the agreed to have a wizard's duel at midnight. But instead Malfoy told the caretaker Filch to get them in trouble.
Explanation:
Draco Malfoy! Malfoy challenged Harry to a duel at midnight. Instead of going there, Malfoy told Filch, the caretaker.
Dominion means the power to rule,authority
