A Carved Mosswart Statue

From the King Toad Idol quest introduced in the From the Darkness Born event.

A Carved Mosswart Statue
Value: 100,000 12,500 Burden Units
This stone throbs with magical power. To the trained item mage, the magic within the stone appears to be attuned to the School of the Right Hand. Perhaps if one were attuned to Item Magic in some way, they could benefit from using this stone.

Notes

Obtained from the Mosswart Enchantment Idol in the King Toad Idol (Dungeon)
This device can only be hooked on a mansion.
If you have not completed any of the six parts of Bleeargh's Gratitude or have already been rewarded the statue will be unresponsive:
The stone appears to be unresponsive. Perhaps you are not attuned to ebb and flow of item enchantment. You will need mystic knowledge to access the magical teaching within this stone. Being that the statue is of a mosswart, perhaps you will need knowledge passed to you from a mosswart mystic.

This stone throbs with magical power. To the trained item mage, the magic within the stone appears to be attuned to the School of the Right Hand. Perhaps if one were attuned to Item Magic in some way, they could benefit from using this stone.
Using the statue after completing a part of Bleeargh's Gratitude will teach you all the spells in Item magic for the level associated with that part of the quest. For example turning in the Necklace of Leeargh to Bleeargh, then using the statue results in all level III Item Magic spells being automatically put into your spellbook (the spell panel will open if you have Item filter checked, it will not if it is unchecked, even though you learned all the spells).