By giving it the rat that can be obtain from the castle at the servants room using rotten cheese
Click on the "bag" icon (your items) and chhose the card with the mouse. If you release it near the owl, it will be eaten (chomp). Thereafter the owl will follow you in the underground passages (but not in the castle).
You feed the owl the robotic mouse that is in the castle
The mouse is in the Maid's room of the castle (first floor left side). You can capture him with cheese you find in the dungeon. You will need to use the gold coin from the fountain to enter the Mordred Museum and get the Library Slip from the books there. In the castle library (first floor right side), click on the shelf marked McM to enter the dungeon.
you catch the mouse and release it by the owl.
release it to the owl. then the owl will follow you
if you have the mouse release it where the owl is
Follow the owl out of the lab and feed him the mouse (from the Maid's room). He will follow you. Click the owl, then the fuel rod and he will retrieve it for you.
get the moldy cheese and get the mouse in the castle
You first go to the library in the castle, and click the mcm part of the fiction area. Some stairs will come out, and you go down to the dungeon. There, you will find some moldy cheese, walk over and pick it up. Then go to the maids room in the castle, and set down the cheese. The mouse will come over to you, and your player will automatically collect it. Then go to the place where the owl is, and release the mouse, and the owl will catch it. Then, the owl will follow you. :) i pressed the mcm part but nothing happened.What should i do?
Get the owl to follow you by feeding it the robot mouse. Push through the dirt wall into the tunnel, and enter the dungeon cell. Clicking on the owl, then the fuel rod will retrieve it for you. (You must have already opened the back gate to the cell from the castle library entrance to the dungeon.) (see related questions)
Merlin the Owl cannot go to the castle until after the end of the game. You can push through the dirt wall in the lab. The tunnel leads to the dungeon cell.
To get the owl to follow you have to get the mechanical mouse in the servants room ( to lure it out get the cheese from the secret room below the library). Once you get to Merlin (the owl) go to your items list and release the mouse. Merlin will eat the mouse and the owl will follow you.