1. ALWAYS STAY WITHIN SETTLEMENT BORDERS. 2. AFTER DUSK, MAKE SURE ALL SHADES ARE DRAWN, AND ONLY LIGHT YOUR ROOMS WITH CANDLELIGHT. 3. IF YOU SENSE AN INTENSE VIBRATION ALONG THE GROUND, IMMEDIATELY TAKE SHELTER IN A SECURE LOCATION UNTIL IT SUBSIDES.
Seventeen-year-old Jayniss has lived by these rules all her life, in the last remaining human settlement on Earth, far in the future. The settlement's confined to a pocket of wilderness that used to be rural Pennsylvania, since the terrosaur—a species similar to the Tyrannosaurus rex, though much larger, fiercer, and more intelligent—stalks the planet.
But when her father goes missing, Jayniss can't buy he was careless enough to have become terrosaur grub. Convinced something else transpired, she and her friend, Paum, venture beyond the settlement's borders in search of him, despite the rules. But what they encounter not only makes them second-guess everything they thought they knew about the settlement, but puts their lives—and what remains of all of mankind—in grave jeopardy.