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As Will Burrows continues to search for his lost archaeologist father in the strange underground world he has discovered, he stumbles across a sinister plot with terrible implications for the world

In the fourth book in the saga of those left behind, the Tribulation Force, comprised of pilot Rayford Steele, his daughter Chloe, and reporter Buck Williams, continues its adventures after the Rap

Ray Steele knows he is absolutely sure of one thing--he does not want to take over the family business. Instead, he dreams of becoming a pilot.

Written for young adults, the Urban Underground series confronts issues that are of great importance to teens, such as friendship, loyalty, drugs, gangs, abuse, urban blight, bullies and self-estee

Written for young adults, the Urban Underground series confronts issues that are of great importance to teens, such as friendship, loyalty, drugs, gangs, abuse, urban blight, bullies and self-estee

Written for young adults, the Urban Underground series confronts issues that are of great importance to teens, such as friendship, loyalty, drugs, gangs, abuse, urban blight, bullies and self-estee

Written for young adults, the Urban Underground series confronts issues that are of great importance to teens, such as friendship, loyalty, drugs, gangs, abuse, urban blight, bullies and self-estee

Written for young adults, the Urban Underground series confronts issues that are of great importance to teens, such as friendship, loyalty, drugs, gangs, abuse, urban blight, bullies and self-estee

Written for young adults, the Urban Underground series confronts issues that are of great importance to teens, such as friendship, loyalty, drugs, gangs, abuse, urban blight, bullies and self-estee

Written for young adults, the Urban Underground series confronts issues that are of great importance to teens, such as friendship, loyalty, drugs, gangs, abuse, urban blight, bullies and self-estee

Written for young adults, the Urban Underground series confronts issues that are of great importance to teens, such as friendship, loyalty, drugs, gangs, abuse, urban blight, bullies and self-estee

Written for young adults, the Urban Underground series confronts issues that are of great importance to teens, such as friendship, loyalty, drugs, gangs, abuse, urban blight, bullies and self-estee

Written for young adults, the Urban Underground series confronts issues that are of great importance to teens, such as friendship, loyalty, drugs, gangs, abuse, urban blight, bullies and self-estee

Written for young adults, the Urban Underground series confronts issues that are of great importance to teens, such as friendship, loyalty, drugs, gangs, abuse, urban blight, bullies and self-estee

Written for young adults, the Urban Underground series confronts issues that are of great importance to teens, such as friendship, loyalty, drugs, gangs, abuse, urban blight, bullies and self-estee