The Spirits Glade has a Whispering Root and a King's Idol. If you've recently gotten the dream nail, head to Seer to get rewarded with a Hallownest Seal, access to the Spirits Glade, and a Pale Ore. For winning the fight you get 300 Essence and the Strength achievement. Quick guide on how to fight the Failed Champion boss, the Dream version of the False Knight.
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