Grave Revelations: Book Two of the Saga of I

In this new post-apocalyptic world people struggle to rebuild. With civilization only just starting to regain momentum an old threat returns. Things have changed. People have changed. The resolve remains the same. Marty and his friends will not stop until this alien force is defeated. Then again, neither will this intrusion end without putting up a fight of its own. Brother to brother, husband to wife, child to mother, an ending will result from these grave revelations.