Secret door puzzle:
This is my contribution to this collaborative dungeon: http://www.msjx.org/2020/01/collabodungeon-01.html
:: East wall – holds a man-sized circular plate. The top half of the plate is polished brass and the bottom half has been coated in black enamel. In the middle of the plate is a rotatable arm. At the end of the arm is a small brass Sun sculpture that has a small pivoting cup behind it. The cup has traces of wax in it. The arm can be rotated 360 degrees, such that the Sun can be positioned anywhere around the circumference of the plate.
:: West wall – is painted black showing the stellar constellations. In the middle of the wall is a perfect sphere about a foot in diameter. Half of the sphere is inside the wall and the other half protrudes into the corridor. The sphere can be spun, and if spun it can be seen that half the sphere is white and the rest black.
:: Solution (spoilers!!) – a small lit candle must be place in the cup of the Sun arm and the ‘dial’ moved to the correct time of day (straight up is noon and straight down is midnight). The Moon sculpture must be rotated to show the present phase of the Moon (e.g. if the Moon is presently a Full Moon, the half sphere in the corridor must be rotated to show all white). The secret door will then open. The door will lock again when any of the above conditions cease to apply, e.g. the candle goes out or the time of day changes. The door has no opening mechanism on the inside.
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