As an enforcer, Lin is sworn to protect the corporations that rule Earth. But when her people need her help, she'll have to break every rule to save them. Yang Lin is a rising star at Hauser Incorporated, one of the three corporations that govern Earth. But Lin has a secret that could destroy everything she's worked to achieve. She wasn't born on Earth, but on a refugee ship fleeing a faraway colony. Lin has lived her whole life in two worlds, associating with other refugees from the colonies at home but passing as a successful Earth-born woman at work and school. Now Lin has to choose. Her mother and a group of fellow colonists have a plan to get more refugees past the deadly defenses guarding Earth, and they need Lin's help. Joining the cause could mean losing everything-even her life. Refusing to help will mean the death of thousands from her homeworld. Meanwhile, unbeknownst to Lin, someone powerful is about to blow her cover. In Insider, a gripping sci-fi thriller, Lin's next move could save thousands-or doom them all.