An addictive new drug fuels superhuman strength and speed in this action-packed sci-fi thriller that will have fans of Scott Westerfeld and Marie Lu on the edge of their seats. Only those young enough can survive tetra, a dangerous drug that creates a pulse-pounding rush of enormous strength and incredible speed. Seventeen-year-old Alana West has been trained to use tetra so she can pursue the young criminals who abuse its power--criminals like the...