Riddles of Stonehenge

Life is good, life is normal for the adopted siblings Kaitlyn and Zachary. They quarrel, they have good times, and this summer they're going on a vacation. So begins the road trip, but something odd happens: It quickly becomes night, and a comet shoots across the sky. It's an amazing and unusual sight, but no one else seems to have noticed besides the two. And then they find the crashed meteorite while camping, and then their parents take a drink, and that's when they find out it's happened. Their world is doomed, the infestation of aliens has begun...

(Co-written between A.T.Millard and XxMikixX. All chapter in Kaitlyn's pov are written by XxMikixX, and all of Zachary's are written by A.T.Millard.)