— Empress’ Palace — a group instanced hunting zone for 2–7 characters of level 115 and above.
— You can enter the instance through NPC Benusta in Aden.
— The time spent inside the zone is limited.
— Access to the instanced zone resets every Wednesday at 6:30 AM.
 

List of possible rewards:

Forgotten Spellbook - Finale

Greater Zodiac Agathion’s Book of Growth

Greater Zodiac Agathion’s Sacred Book of Growth

Sealed Heavenly Talisman

Unidentified Ramona’s Fancy Earring

Unidentified Helios’ Majestic Earring

Unidentified Harnak’s Enhanced Necklace

Unidentified Mimir’s Worn Ring

Core’s Unidentified Forgotten Ring

Ramona’s Fancy Earring Imbued with Chaos Power

Helios’ Majestic Earring Imbued with Chaos Power

Harnak's Enhanced Necklace Imbued with Chaos Power

Mimir's Worn Ring Imbued with Chaos Power

Core's Forgotten Ring Imbued with Chaos Power

Gran Kain’s Shining Scroll: Enchant Kaliel’s Bracelet

Gran Kain’s Shining Scroll: Enchant Circlet

Gran Kain's Shining Scroll: Enchant Dragon Rind Leather Shirt

Gran Kain’s Shining Scroll: Enchant La Vie En Rose’s Brooch

Gran Kain's Shining Scroll: Enchant Superior Seed Bracelet

Kain's Soul Crystal Lv. 9

Mermoden's Soul Crystal Lv. 9

Leona's Soul Crystal Lv. 9

Pantheon's Soul Crystal Lv. 9

Lionel’s Soul Crystal Lv. 9

Kain’s Soul Crystal Lv. 8

Mermoden’s Soul Crystal Lv. 8

Leona’s Soul Crystal Lv. 8

Pantheon’s Soul Crystal Lv. 8

Lionel’s Soul Crystal Lv. 8

Masia’s Soul Crystal Lv. 6

Tersi’s Soul Crystal Lv. 6

Shillien’s Soul Crystal Lv. 6

Legendary Dye Lv. 9 (P. Skill Power)

Legendary Dye Lv. 9 (M. Atk.)

Legendary Dye Lv. 9 (M. Critical Damage)

Legendary Dye Lv. 9 (M. Skill Power)

Legendary Dye Lv. 8 (P. Atk.)

Legendary Dye Lv. 8 (Critical Damage for Basic Attack)

Legendary Dye Lv. 8 (P. Skill Critical Damage)

Legendary Dye Lv. 8 (P. Skill Power)

Legendary Dye Lv. 9 (P. Atk.)

Legendary Dye Lv. 9 (Critical Damage for Basic Attack)

Legendary Dye Lv. 9 (P. Skill Critical Damage)

Legendary Dye Lv. 8 (M. Critical Damage)

Legendary Dye Lv. 8 (M. Skill Power)

Legendary Dye Lv. 8 (M. Atk.)