break it
There doesn't seem to be a drain there. There's a robot owl, who will follow you if you feed him a mouse. There's a dirt wall you can push through, and a tunnel to the dungeon where the robot attacker is kept. The gate at the end is opened from the library entrance to the dungeon.
you have to get a key then you go down mordreds old hidding place a secret entrence would be there click on it and youwill enter the dungeon
You have to scare the robot in the dungeon by going in (find way in in mordreds hideout between hay) and get the owl (merlin) to grab it for you.
get the missing page of mordreds jornal wich is under mordreds bed
mordreds lab is to the left of ye old windmill, between the two hay barrels
You have to go inside the next tunnel then go in the temple or dungeon
first you have to get mordreds library card thing then go to the non fiction sign in the library and next to the sign click a piece of paper next to McM then go down a stair case that appears and your there
The gate to the dungeon cell is controlled by a switch at the entrance from the castle library. When you enter the dungeon to get the cheese, you should throw the switch. Later, when you access the dirt tunnel from Mordred's lab, the gate is open to the cell. You need to feed the cheese to the mouse and the mouse to the owl to recover the fuel rod from the dungeon. (see related question)
56,52
Ithink that it is something like 27NUX83F
The small gate is in the BACK of the dungeon cell, and connects to the tunnel Mordred dug. By throwing the dungeon switch, you open the gate so you can come in that way. (see related question : getting back in the dungeon)
In the museum.(the top floor)