After reading the Angel Experiment, I had to find out what happens next. Max, Fang, Iggy, Nudge, Gasman and Angel find other experiments and rescue them but in the process Max kills Ari who she learns is her brother. Join them in their adventures with the flying Erasers and Fang getting hurt. This is a good series and a fast read. I would recommend it.
Maximum Ride: School's Out Forever