Notes from the Underground, Part 3

The mutant monsters attacked the Turtles, forcing them to forget about Donatello's disappearance. As the battle rages on, the orbs of light wrapped around Razorfist and his foe, making them disappear. When Stonebiter was hit, the group decided to move forward to avoid being hit. The group continued down the tunnel and discovered an abandoned city. There was a large tower in the middle of the city and a bunch of glowing crystals covered the cavern roof.

Shortly after, the doors opened and the monsters rushed forward to attack. With a chasm full of magma in front of the group, escaped looked impossible until Leonardo found a tram. They argued for a little while, but quickly decided that the tram was the better alternative. On the way across, the monsters jumped on to the tram and started telling it apart. A mysterious entity used light orbs to make them disappear, but the tram's cable snapped.

The tram fell and broke on a stalagmite. The Turtles were able to land on the city wall. Quarry was partially buried with rock, but was able to free himself by spitting acid. With everyone safe, the group was able to get a good look at the city and saw it's size. They argued about how to find the lost members of their group and decided some nearby flying scooters were the way to go.

As they searched, Leonardo noticed a mysterious figure on a rooftop. The others noticed a flash of light from the building Leo explored and found that he had disappeared. When Michelangelo and Raphael returned to the scooters, Quarry was gone. The two find him hiding and he pointed out a mysterious figure. The group chased the figure, but were eluded. Raph was captured during the chase and both hover scooters crashed during the chase. Quarry was captured by the figure using the orbs of light shortly after.

Mikey, now alone, remembered the tower from his dream and decided to go to it. In the tower, Mikey found all the mutant monsters, friend and foe, encased in crystal with a glowing crystal attached. Just as he was about to try to free Quarry, the Entity appeared and stopped Mikey. Mikey attacks the figure only to be stopped by Leo. Mikey calms down and the Entity explains the history of the city.

The people of the city lived underground for millenia, but discovered evidence of life on the surface several centuries ago. They went up to investigate and the current Turtle Lair was one of their outposts. After a few centuries it became clear they couldn't live on the surface and their species was dying out. The Entity is the last of the species and is able to return the monsters to their original forms, but expects them and the Turtles to remain in the city to repopulate it.

The Turtles refused his invitation and doubted that anyone else would accept. The Entity didn't take their answer well and decided to use a crystal to attack the Turtles with tentacles of stone. Mikey was able to knock the Entity's crystal amulet away from him. The Entity managed to recover his amulet, but Mikey used a light orb to encase the Entity in crystal.

The Turtles free Quarry to find that he has returned to normal. All of the other other mutants were also returned to normal when freed. However, they were only cured by the power of the crystals and had to stay in the city to keep their human form. Donatello vows to find a solution that will let them return above ground.

On the way home, the Turtles come across a patrol of Foot ninja. Splinter comes and tells the Turtles that the Foot are searching for them and the Lair is not safe. They decide to ask April if they can stay there.