When Lana and Andy go to help , Byron preys on Lana and they join forces to subdue Superboy .
Byron Shelly was mugged and lost the serum that keeps his vampire cravings at bay .
When Lana and Andy go to help , Byron Shelly preys on Lana and they join forces to subdue Superboy .
Byron Shelly was mugged and lost the serum that keeps his vampire cravings at bay .