The Ancient Waterworks is the sixth level in the game Wario: Master of Disguise and serves as the location of the third Wishstone piece. Wario is magically transported here after he successfully beats Poobah the Pharaoh. As the name states, it's an ancient area filled with many stones and vines. The water here is purple and many platforms fall from the ceiling, dealing Wario damage if he's hit. Wario also finds the Cosmic Wario Guise Gem here.
When first entering the level, Goodstyle notes the huge waterfall that is crashing in the background and he suspects that something is hidden behind it. Wario would need to climb to the top of the level and clog the water that is forming the waterfall. He would have to clog three areas with statues. After he has achieved this, the waterfall will dry up revealing a hidden door.
When Wario enters the newly discovered door, he sees the third Wishstone fragment. However, a giant flower eats and Wario ensues another battle against Ka-Bloom! After Ka-Bloom! is defeated, Wario is awarded with the third fragment. However when Goodstyle tries to read it, it makes no sense.
The following is what was inscribed ob the Wishstone: ...Ca...mak...Qtl... ...Re...zrg...mro... ...Hfr...zrg...akl...
Wario blames the flower for this, but then Count Cannoli comes in, demanding Goodstyle back, in exchange for the location of the Wishstone piece. After an argument, Cannoli says that he would be waiting at Sweatmore Peak if Wario ever changed his mind.