Invisible city

One Boy.One Deadly Prophecy.One Heart-Stopping Adventure.Joshua's life was pretty cool - until his father was reported dead in an air crash in Mexico.Was it simply a tragic accident? Why was the plane miles off course? Were there really UFOs in the sky at the time of the crash?In the depths of the Mexican jungle, with a deadly international hit man on his trail, Josh must find the truth about an incredible, dangerous secret - and try to stay alive.