Rise of the Elgin is by Richard Paul Evans. The second book in the Michael Vey series. Michael and his friends have escaped the Elgin compound and now discover that Michael's mother is being held in Peru. With the help of a mysterious group, they head to South America to rescue her. Can they save his mother and bring down Elgin at the same time? An adventure-filled continuation of an interesting series.
Ratings: 7th grade - 8 out of 10 - V (violence).