The owl is in Mordred's hidden laboratory, underground below the hay bales near the mill. You will need a key to get in.
(see the related question)
Feed it the mechanical mouse (from the Maid's room) and the owl will follow you.
At Mordred's secret lab, when the owl flies out, you feed the mouse to the mechanical owl. The owl becomes your friend and follows 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.
Click on Merlin (the mechanical owl) and the click on the "green thingy." Bingo! ;D
Merlin the mechanical owl is in Mordred's lab, hidden beneath the hay bales near the Mill. (see related question)
If you fed the mechanical mouse to the mechanical owl (Merlin), he will retrieve the green fuel rod. Click on him, 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.
It does nothing....HEY can you finish for me super power island and astro knights pls
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.
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.
Actually, Merlin has little to do on Astro Knights Island. He recovers the fuel rod from the dungeon when the robot self-destructs. And he battles Mordred at the very end of the island.
When you awaken the robot owl Merlin, he flies out of Mordred's lab. In order to get him back, you have to feed him the robot mouse. (chomp)