Thanks for the quest. It was quite challenging and took up a good part of my vmk day to complete.
Couple suggestions you may consider to help improve the player experience.
1) Is there a way to clarify which teleporters you refer? I went off searching for the Big Thunder Mountain Train teleporters vs the Everest teleporters in the first question, as a result, I kept running out of time. When people say train teleporters, the Big Thunder ones are what I look for.
2) Indicate Invisibility/Spooky magic is required for the quest. Some players may not have the required magic, so it will be very frustrating to get underway only to find out you can't complete it.
3) Could you change wording on VMK on Ice Mountain question? Maybe it is just me, I kept searching for a room called "VMK on Ice Mountain" never found it. After five tries I headed back to the starting room and searched every spot (spoiler clue follows) on the mountain where the quest generator is located and did not find what I was looking for and ran out of time. It could just be the way it is worded.