sentences:  Unbeknownst to Shayera, the Thanagarians' true intent is to transform Earth into the final link in a hyperspace bypass, which will destroy Earth but allow the Thanagarians to strike a mortal blow at the Gordanians' homeworld.When Shayera learns of this plan, she betrays her people and informs the Justice League of the Thanagarian plot, proving this by returning John's ring which the Thanagarians had taken.The Thanagarian forces are eventually defeated by the League and forced to leave Earth, with Shayera left behind as a traitor.