In "Mischief Master - Protect the Precious Gem," a young boy is left alone at home with a valuable gem while his parents are away on a trip. Upon learning about the gem, a thief plans to steal it during this time. Your task is to outsmart the thief by setting up traps and obstacles to prevent the theft. Utilize your strategic thinking to create rolling stones, dig pits, use chili water, release dogs, and more to thwart the thief's plans. This humorous and mischievous casual puzzle game offers a fun way to pass the time while you protect your precious gem from being stolen.