Talk:Assemblers/@comment-71.213.50.208-20180519135648/@comment-33795501-20180519170257

A random Assembler can be gained from collecting all of the keys in the Secret Room.

Otherwise, would you happen to have the Spring Amulet active, or any quests that tell you to find those specific items? If it is a requirement for a quest that does not mean the item nessescarily drops from that location, only for said quest. For example, an Angel Park quest requires you to find a Keeper of Blood from there.