Pacify Pranking Leprechauns 15 times
Send a Pinch to 2 Friends
Upgrade the Ruined Ruins

Mossy Wall, 3 Fool's Gold, Pot O' Gold
Comes from:

March Mischief
Spawns:
The Last King O' Ireland
Notes: Leprechauns drop from Green Beans, Red Cabbage, Potatoes and Clover are pacified with 5 Uilleann Pipes (Wall Post). Craft Pinches and send to neighbours via the Inventory. All building details are HERE.
Each Pinch requires 8 St Paddy's Spirit (Green Beans) and 8 Green Free Neighbours (Wall Post)