Another possible scribe's mark, at the bottom of the page and partially cut off.
I cannot read this terribly well but one of the words appears to be "faciendo" which my limited grasp of knowledge tells me means something to do with being "made" or "making." This may well be a scribe's comment on the text itself as they were wont to do.
Link
Velantian
So much for attention to detail ... time to beat an apprentice.