give him the robot mouse from the cell
release it to the owl. then the owl will follow you
Feed it the mechanical mouse (from the Maid's room) and the owl will follow you.
You scare the owl outside. follow it and release the mouse. it will know follow you
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.
You have to feed him the mouse. Merlin the owl will follow you into the passage to the dungeon cell, and you can click on him and then the fuel rod and he will get it for you.
Go outside and feed him the robot mouse, and he will follow you into the dungeon. Click the owl and then the fuel rod and he will retrieve it for you.
Feed the mechanical mouse to Merlin and he will follow you to the dungeon. Click on the owl, then click on the fuel, and he will retrieve it for you.
Feed the robot mouse to the owl, and then he will follow you. In the dungeon cell, click the owl, then the fuel rod, and he will retrieve it for you. (see related question)
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.
When you enter the underground lab, he flies out. Follow him and set down the mechanical mouse. He will eat it (chomp) and then follow you. You can use the owl to retrieve the fuel rod, by clicking on him and then on the rod.
Follow him out of the lair and feed him the mechanical mouse. Then he will go with you sometimes. To retrieve an object, click Merlin then click on it.
Feed the mechanical mouse to the owl Merlin, and he will follow you to the back entrance of the dungeon. When the robot blows up, click on Merlin and then the fuel rod, and he will retrieve it for you.