Can an arcane eye spell go through the bottom of a door since the spell cannot simply pass through a solid structure. Is the small area beneath a door enough space?
The spell states "it can pass through a hole or space as small as 1 inch in diameter."
It has always come down to a GM call for us. The crack at the bottom of poorly made doors or large doors it would allow the eye to go under the door. If the doors are well made, then there is less than a 1" gap and the eye will not pass.
Seems pretty clear, if it can pass through a hole or space as small as 1 inch in diameter, then it can pass under a door if the gap at the bottom is 1 inch or greater. If the gap is smaller, no sell.