The Mysterious Qi Quest-line allows access into the casino, which is located in the oasis shop in the desert. The main reason you might want to unlock the Casino is so that you can purchase the Alien scarecrow, so that you are one scarecrow closer to unlocking the deluxe scarecrow crafting recipe, which has double the crow-shooing range than a normal scarecrow.
Hold the battery pack and right click the panel to start the quest.
You can get a solar essence from a ghost in the mines, they appear between levels 51 to 79. The desert can be accessed after unlocking the desert bus community center bundle, which you will have to donate a total of 42,500G and wait till the next day for the Junimos to repair it. Afterwards, you can go on the bus for 500G and place the solar essence in the sand dragon’s bones.
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