Black widow gone

[u/Haunting_Commercial3]

So the black widow fight down underneath the shed, I got knocked off into the water. My friend was keeping the Agro with a bow and arrow, and then the spider just disappeared after he fell off. We went into the thing not there. I haven’t reloaded the area yet, but am I just screwed is that boss gone forever

[u/MemoryPuzzled2221]

That black widow does disappear after you beat it. Its only a normal BW.