coup de main - noun
kü-də-ˈmaⁿ
Definition of coup de main : an attack that achieves complete surprise.

The 'Harry Potter: Hogwarts Mystery' game is out now.

Harry Potter fans now have a great excuse for procrastination, thanks to a brand new Hogwarts mobile game which lets you 'experience' life as a student at the school of magic.

Even better, the game is available as a free download on your relevant app store now.

Watch some trailers for the game below...