MPC/MINER: Mysterious Castle & Dragon Crest Playsets

MPC, which was a subsidiary of Miner, repackaged their old knight and glow in the dark monster figures into loosely fantasy themed playsets in the early 1980s.  MPC released the Mysterious Castle playset which was only available through the Sears catalog.  Miner released a playset called Dragon Crest which was mostly the same.