How do you get the owl to come with you on Astro Knights Island?
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.
if u caught the mouse on astro knights u need to go to a house if u got the key and when u went inside the house, you'll find a robot owl and it will try it get away. Go outside and go on ur items and click the word use on the mouse and the owl will eat it and follow u :) (see related answers for more)