The plot became emotionally charged during a love triangle that was established when he rejected and moody Cal expressed his competitive liking for Abra...Why does he put his toothbrush in my glass?" Carol also noticed a crack in the ceiling: "We must get this crack mended." Spock and his vessel were captured and he was marooned on Delta Vega, so that he could helplessly watch his home planet Vulcan""s destruction ("so that I would know his pain").Inside were pieces of broken-down furniture and rotting wood.As he opened a door to an inner room (not shown) and exclaimed: "Oh, my God!", an unseen figure bludgeoned him in the back of the head with a hammer claw(# 3 death).