(non)Interactive spot on the castle map

[Gene R]

Right past the toll gate there's a drop on the right. Going near the edge always activates an "Interact" prompt for me, even though there is nothing to interact with. That specific place seems to contain several minor bugs.
1. Herbs can grow there, sometimes there's two at the same time.
2. One time I activated an open book. Usually they activate a ghostly trail that leads you to buried treasure, but that time it did not. Not even the flavor text for the event. Instead, the preyer kept whoosh-ing once every 4 seconds. I then went to the place in question. The ghostly trail did appear that time, the "interact" prompt was gone, and there was no treasure to speak of.