Is there a sequel to Black Hole Sun?
Affirmative. The sequel to Black Hole Sun is Invisible Sun, which was published in March 2012 by Greenwillow Books, an imprint of HarperCollins.
Is there a sequel to Invisible Sun?
Affirmative. The sequel to Invisible Sun is Shadow on the Sun, will be published in March 2013 by Greenwillow Books, an imprint of HarperCollins.
Is there a sequel to Shadow on the Sun?
Negative. There are no current plans for Greenwillow to publish more Durango books.
Yes, there will. It’s titled Shadow on the Sun, and it will be published in March 2013 by Greenwillow/HarperCollins.