With the final Stone Tablet destroyed by a freak lightning bolt, the Harvest Sprites—and you—have no choice but to return to the Harvest Goddess Spring and consult with the others. Edmond and the Harvest God and Goddess discuss the matter, but it’s Nova who ends up suggesting your next move.
Doc’s Creation
Visit Doc to see if he has any suggestions on what to do about the missing Stone Tablet. Doc believes he can manufacture a replacement Stone Tablet, but he needs 2x Jade and 10x Stone to do so. He also wants you to bring him a flower, for unrelated reasons.
You shouldn’t have any trouble acquiring 10x Stone, especially with the Expert Hammer, but you’ll likely need to head to the mine for Jade. Take a moment to store any extra Fertilizers, feed, bait, and Cornmeal you have in the Fertilizer Bin and Windmill. Sell some of your items to Sam, Carol, or Bastian to free up inventory slots in the Bag if you haven’t upgraded the house yet. Once you’re ready to head to the mine, enter at Level 11 for the best chance to find Jade. Collect 2x Jade, then bring them to Gus for processing. Return to Doc once you have all the items he’s requested.
While Doc works on creating a replacement tablet, he asks you to deliver the flower to Carol. Check the map to see where she is—she’s likely inside her house—and make the delivery as requested. Carol asks you to deliver a single White Rose as her response. Take the flower to Doc right away in exchange for the Stone Tablet Replica.
Visiting the Underworld
With the Stone Tablet Replica in your possession, it’s time to return to the Harvest Goddess Spring. Edmond and the Harvest God and Goddess attempt to imbue the replica with magical powers, but it doesn’t work. They need the help of the Underworld King, Gorgan—or his kin. But more than that, they need the Cyanocrystal!
The first step in retrieving the Cyanocrystal is to fix the bridge to the Underworld. The bridge lies to the east of Jeanne’s house at the lighthouse overlook and requires 10x Material Stone, 30x Stone, and 2x Mithril, along with 5000G. You need 6x Mithril Ore to create the Mithril needed to repair the bridge. If you don’t have enough, head to Level 31 in the mine and get mining with the Expert Hammer. Repair the bridge and make your way north to the Underworld entrance.
Smash your way past the boulders lining the cave to enter Gorgan’s throne room. Nova introduces you to Gorgan and tries to convince him to part with the Cyanocrystal, but it’s no use. They return to the Harvest Goddess Spring empty-handed. Edmond and the others aren’t discouraged, however. They believe they have the power to resurrect the lighthouse even without the Cyanocrystal.
Finding Oliver
Edmond believes he knows what’s missing: the final Harvest Sprite. He instructs you to gather some flowers, Wool, and fish. Specifically, he needs a Pink Dahlia, Yellow Perch, and Wool. Pink Dahlias are forageable flowers in summer and should be readily available. Yellow Perch can be caught at either the farm or mountain with Regular Bait at any time of day, during any season. Lastly, any grade of Wool is acceptable and can be collected from an adult sheep every third day.
With all the items in place, the Harvest Goddess is able to summon Oliver, the Harvest Sprite of Spirit. Now all seven Harvest Sprites have returned! Travel to the lighthouse at once to put the power of the Mages, the Harvest Sprites, and the Gods to use in restoring the lighthouse once and for all.