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?