Crisis of the Crescent Moon — Brian Goodnough

In a small New York state community nestled just twenty-five miles outside Manhattan, catastrophic danger lurks for our country. It isn't visible to the naked eye, but it's there nonetheless. Right under the noses of the residents of this sleepy little town, an insidious and deadly plot is being carried out by the enemies of the United States. But this isn't our grandfathers' enemy. This enemy walks our quaint, American flag-lined streets without alarm. This enemy coaches the fifth grade soccer team and gets his hair cut in the barbershop. This enemy attends the PTA meetings and runs a religious charity.

This enemy lives in the house across the way.

The enemy, by the way, has a name: Hassan 'Archibald' Abdulnaby. People around town affectionately call him Archie. Special agent George Hawkins is the only one who knows about this enemy. Nevertheless, George can't convince a soul of the threat, even his superiors at the CIA who placed him in the house across the street to watch. You see, Abdulnaby knows George lacks the one thing the Agency needs to accuse an upstanding Muslim-American citizen of spearheading a terrorist sleeper cell: probable cause.

George does, however, have an inside man: his 21-year-old nephew Sean Hawkins. And when Sean begins dating Abdulnaby's daughter Emily, an escalating game of suspense ensues...