4-8 Helpers?

Mowz and 1 or 2 friends start the server and try to survive the first night. The next day they set out for coal and find a long medium-sized cave.
In the cave they spot a secret room with a lot of words in it, telling a story of the past. As night creeps upon the crew, they decide to bunker down in the room, finding a chest with beds in it. When they wake, they make it to the end of the tunnel and find a deserted city lodged underwater. As they scavenge the houses, there is a cave in the background. Now the players decide to make this cave their home as there are many room-like areas.
While shaving around one of the rooms, one of them finds a chest with a map. The map is actually a letter stating to go underground to find riches. While they go underground, they don't notice a shady figure creep into their underground cave...
As the team continues down, they hit a cavern, with diamonds so close together it was explainable. There was so much to make full sets of armor for each, but one makes two swords and saves the others. When they resurface, the one who made the swords stepped on an unseen pressure pad and is attacked by three arrows from a dispenser. The whole team is mystified and spooked, wondering how it got there and why it was there.
About three days later in the game, they saw something just as strange. A shady figure hit Mowz with a wooden sword, and the rest of the team ran to the scene. Mowz tried to catch up to the shady figure but he was all too quick, and simply vanished.
Again the shady figure arrives, and the team chases him. Mowz almost caught up, but the team saw a weird shape in the background, made of stone bricks. It was a tower of a city. In it was about three people, (preferably,) two men and one woman. The city mayor, a (male) blacksmith, and a miscellaneous items shop owner. The shop owner was the first to greet the trio/duo, her shop was under siege by zombies. As one of the members steps in almost immediately, Mowz quiets him and tries to steal the spotlight, but the woman was interested more in the other one.
The group finds out after saving the shop that the blacksmith's smithy has collapsed, with the smith underneath the rubble. The group knew while talking to the shopkeeper because the heard TNT behind them. The mayor follows the group because he is worried and makes a lot of comments about it "happening again" and "history repeating its dark self"
When the team gets down into the smithy after pounding through a lot of cracked stone bricks and find the blacksmith, they hear a scream. The one the shop keeper fancied runs up to the surface with Mowz, the Blacksmith, and the mayor running after.
The shady figure is seen from a broken down shop, then runs away. Mowz tries as hard as he could to follow, disregarding his crew and the mayor's warnings. Mowz keeps running and steps on a pressure plate, blowing himself up.