The Wilds

The Wilds are the supposedly unpopulated area outside of the enclosed metropolitan areas of the U.S. Invalids live in the Wilds.

The Fence

The border of Portland, Maine is surrounded by a guarded fence topped with barbed wire and electrified. However, unknown to most people in Portland, the power is often turned off throughout much of the fence.

37 Brooks

37 Brooks is an abandoned house where Lena, Alex, and Hana hang out during the summer.

Back Cove

Back Cove is a relatively unpopular Portland beach where Alex and Lena often go.

Scars

The procedure leaves a scar on people's necks. Alex has fake scars so that people will think he has had the procedure and is "cured."

The Governor

The Governor is Lena and Hana's name for a statue that was a stop on many of their runs. The Governor's hand used to hold something, but...