Dan Arrow and the Hollow Moon by Edward S. Baker

Dan Arrow and his girlfriend, FBI Special Agent Mona Casola, are on a mission to assist their alien friend Waam in finding out who gave the orders to kill his nephew and steal a secret box—a box like Pandora’s that contains something that the world doesn’t need unleashed. In the meantime, Mona is also determined to find her missing baby—a human-alien hybrid, called a star child—which has been kidnapped and taken someplace called “the hollow moon.” While continuing to discover more truth than fiction in popular conspiracy theories, Dan learns that the New World Order is unfolding its domination plans through the United Nations’ Agenda 21, and he has to stop its cogs from turning.