Headspace by J.D. Edwin

A black orb appears with a challenge for Earth in its strange—and very public—game. Recruited against her will, 25-year-old Astra finds herself an unwilling superstar. As she fights to save the world from imminent destruction, her people are more interested in tabloids and gossip. Will she emerge from the arena a hero, or just another headline?

Category: Science Fiction – First Contact