As one of the mob's most brutal and dangerous enforcers, Lonnie Thompson Lincoln was a force to be reckoned with. So when a chemical accident turned his skin rock hard and cold as the grave, he adopted the name Tombstone-an apt moniker for this strong, silent psychopath! Only the might of the amazing Spider-Man has been able to plant this Tombstone into the ground, stopping his reign of terror...but for how long?