Marty believed he would never see his friend again, and grieved for him.But "Doc" - with a newly-retrofitted, upgraded steam locomotive, made a surprise entrance back in 1985 with a tremendous sonic boom at the site of the destroyed DeLorean.Plan B was for Jonathan to blow up the gold tower with dynamite.Alex disagreed, fearing: "If the explosion doesn't kill us, the avalanche will." He proposed instead: "We ambush him with long-range rifles and silencers." Under the command of the Emperor, General Yang was ordered: "Clear a path to the Golden Tower.Prove yourself to me." Heavy bazooka fire was unleashed on the tower area, and Alex, Rick and Evelyn were overpowered, forcing their retreat from crossfire.He drank from it, but perished from immediate decomposition - it was the wrong cup.After Donovan died, Elsa told Indy: "It would not be made out of gold" as he selected a different chalice - a simple earthenware cup of a humble carpenter.The agent hasn't found a girl because his conscience won't let him ask a young girl to take on such an unknown project:I can't send a young pretty girl such as you ask on a job like this without telling her what to expect.