Saas Ko’sah Shrine
Underneath Hyrule Castle are somes docks. There are several ways to reach them. A secret passage behind a bookcase in the library leads down to them. Activate Magnesis to see which bookcases can be moved. Alternatively, you can swim or sail into the docks from outside. Look for a cave on the northwest side of the castle.
Just above the docks is an area with a large torch, which is unlit. Light a fire in the torch to make the Shrine appear. The Travel Point outside the Shrine is a handy way of returning to Hyrule Castle if you need to leave the area.
A Major Test of Strength
Defeat the powerful Guardian Scout IV to complete the trial. This one carries a sword, a spear and a battle axe. Treat it with caution and don’t hesitate to use your strongest weapons and armor.
- There are no pillars to use as cover, but look closely at the floor and you’ll find metal blocks that you can lift up with Magnesis. The Guardian Scout IV’s worst attacks can be repelled using these metal barriers.
Once you’ve defeated the Guardian Scout IV, open the Treasure Chest to get a Flameblade and talk to the Monk Saas Ko’sah to collect a Spirit Orb.