On the edge of gone / Duyvis, Corinne

In Amsterdam, the Netherlands, in 2034, a comet is due to hit the Earth within the hour and Denise, who is autistic, must try to find her missing sister and help her neglectful, undependable mother safely aboard a spaceship.

"In Amsterdam, the Netherlands, in 2034, a comet is due to hit the Earth within the hour. Denise, who's sixteen years old and autistic, must try to find her missing sister and also help her neglectful, undependable mother safely aboard a spaceship"--Provided by publisher.