The Great Owl Furnace (1/2) #17 :

The video will guide you on, how to get to the Great Owl Furnace Dungeon through Leone Heights in quickest way.
Timestamps:
0:00 Intro
6:00 Dinna Mountains Map
12:20 Leone Heights
14:50 Checkpoint
17:45 Fighting Kangmi
23:00 The Great Owl Furnace Dungeon