Mine imp investigation-to defeat violent mine imp×1
Lady lynch's offer- to defeat violent altar imp×1

No idea how complete this quest went quest place hunted more then hour nothinghappen some plz help for this type quest

Violent monster got this icon 💥 on the mini map , just search and slay it (In Imp Area)

I had the same issue so for anyone seeing this after me, it says in the quest that they take awhile to spawn, took me about 10 mins for one to spawn :)