Harry Potter and the Half-Blood Prince Mobile Phone Game

What is Harry Potter and the Half-Blood Prince Mobile Game all about?:

Hogwarts™ is no longer the safe haven it once was as Voldemort tightens his grip on both the Muggle and wizarding worlds. Experience all the action of Harry's sixth year as you join Harry, Ron and Hermione in their exciting adventure! Cast powerful spells in duels with fellow students and familiar foes. Do battle with evil Death Eaters who are determined to fulfill their master's Dark wishes. Do you have what it takes to save Hogwarts™?