The Knights found the next cavern to be what Dartan referred to as "The rust monster room". Here, the room was bissected by a tall wooden wall.
At the top of the wall is a platform, Snooky said. There is a door at the other side. The viewer is meant to come down off the wall to investigate the door. At that point, two rust monsters would rush out and eat his armor or weapons.
Myramus stepped forward, aiming at the wall with his sword. "Ready yourselves. We'll face whatever monsters there be on our own terms. Passwall!" Nothing happened. He said the phrase meant to trigger a magically-opening passage again. "Passwall!" Still, the wall stood whole. "That's odd."
"Never mind," Edge said. "I don't have any armor or weapons. I'll go and investigate." He leaped to the top of the wall and looked over the other side. "Nothing yet..." He leaped down. Looking behind him, he saw two disinterested rust monsters milling around beneath the wall's lip. "Two of them... not really much of a threat. I guess I'll go look at the door..." He turned to see the door. It was a large wooden door with four wheels lined up horizontally. On each wheel were four letters. He was about to read the writing above the wheels when he heard his companions cry out behind him.
"Edge! Look out!"
He turned to see the wall- the entire wall- rising from the floor. It warped and rippled as though it were made of water. A mouth opened, and it gurgled as it slogged over the rust monsters, toward Edge, who struck a defensive stance. The rust monsters chittered and rushed for the other Knights, who quickly angled themselves to protect the more metal-ensconced among them.
Dartan, Myramous and Menerous fell far back, while Kizzlorn and Broldek (with sword sheathed) stood to fight the beasts at the bottleneck of the entrance to the room. The orange beasts twitched their antennae at the delicious smell of metal and attacked. Kizzlorn fried one with a blast of fire, and Broldek pounded the other with his fists. The things died easily... they were only really a challenge for fledgling heroes.
Edge bounced off the wall behind him and kicked the wall in front of him, driving his foot into the fleshy, wooden-looking creature. It roared and gnashed its teeth at him, taking a chunk out of one leg. Edge spun and plunged his fist deep into the wall's side, crushing something internal that no wall should have. Whatever it may have been, it hurt the thing, and it growled ferociously, fighting on against the cornered monk.
"We should help Edge," Kizzlorn said. "The rust monsters are- wha?" She fell over as something knocked her aside. It chittered as it went. By the sound, it was heading straight for the armored Knights behind them. "Oh, no... DARTAN! INVISIBLE RUST MONSTERS!"
Dartan and the Maximus brothers gasped and drew their weapons, then... resheathed them. They began to panic. Kizzlorn hit the wall-creature with a fireball, then blasted the area she believed the rust monsters to be inhabiting with a twisting web of lightning. The things screamed. One of Myramus' belt buckles turned to rust, and he shrieked. Dartan threw a tanglefoot bag at the area, and the loose bag burst. Ropy tendrils of sloppy adhesive liquid splashed around, clearly marking the place where a rust monster was skittering about. "Good work, Dartan," Broldek said as he hurled himself at it and began to pound it to death. Kizzlorn blasted at another invisible monster, and heard it die.
Broldek stood up when it was all done. The wall was dead, and there was no more chittering, to the delight of the three heavily-armored Knights. When Broldek stood, the dead monster he'd been pummeling came up with him. It was stuck to his chest. "Damn tanglefoot bags..."
He ripped most of the thing off his chest and they faced the door. "Another puzzle," Myramus said wearily. "Here, let's just go." He created a tunnel through the wall at the side of the door, and they passed the puzzle without incident.
MORE TO COME...