Windslugs are so called because of the strange appendages that line their back, and allow them to glide in any small breeze that can carry their weight. Their trails of slime can be very annoying to the mages who prefer clean rooms and tidy halls, but it does have some use- the slime produced by these slugs is an excellent binding agent for books and tools, and has been found that when bonded between too objects and removed from air, will solidify into a near unbreakable substance.
This tiny......hatchling..... seems to enjoy eating and consuming whatever plant matter it can get to. It is otherwise not much of a problem, though the slime it tracks around makes quite a mess. It has grown now and a pair of fins line its back, which allow it to unjulate into flight whenever the breeze is strong enough. You often see it munching on leaves in the orchard.
Your...hatchling... has grown now and it is able to use its fins to obtain access to anywhere in the hold it pleases, and to munch on whatever plants it wants. You've taken to getting used to having to clean slime off the ceiling, though you wish it would refrain from eating the mossy stones. Even so, you notice that without cleaning, the slime will resolve itself, and that your room looks a lot less dank than before.