Radiant Mana Infusion

From the ?? quest introduced in Unfinished Business.

Radiant Mana Infusion on altar at end of Sclavus Tunnels.

Radiant Mana Infusion
Value: Burden Units
A small glass flask containing a radiant aqua liquid. Perhaps this could be used to further empower items already infused with great power. Special Properties: Attuned, Bonded It looks like you could pour this on some other item.

Notes

• Pickup Timer: 30 days
• Found at the bottom of Sclavus Tunnels after a locked door (700 diff). You can either pick the door or get the Reinforced Door Key that drops on a specific Sclavus Acolyte of T'thuun that spawns next to the Charred Falatacot Journal that's on the ground not far from the entrance (stick left).
• Apply to Sword of Lost Light or Sword of Lost Hope
• Give to ?? for xp.

Lilly of Glenden Wood doesn't know what to do with that.