Invasion : Walker Books Ltd : 9781406397512 : 1406397512 : 01 Jul 2021 : An exciting and original debut sci-fi adventure trilogy for the gaming generation, from a screenwriter, film critic and gamer. Fifteen-year-old girl gamer Casey Henderson is obsessed with smash-hit game SkyWake - and she's good at it, too. Little does she realize it's actually an alien training tool created by an evil extra-terrestrial race. When the aliens swoop down on a national gaming tournament, Casey and her teammates discover they're abducting the best gamers to fight in a distant alien war across the galaxy. And they've got her brother. Casey's gaming skills are her best hope of stopping the aliens - but first she and her online teammates must learn to work together in real life...