Attached are three files: a cheatsheet for the investigation part, Monument Boon and Overshadowed Spirit descriptions in 4x6 format that you can hand out to players, and enemy statblocks for each tier along with 4-player adjustments. boon-overshadow.pdf cheatsheet.pdf statblocks.pdf
Youthful is incorrect. It should be "Overshadow: The PC’s features appear more youthful, and he loses some of the fortitude and wisdom he gained with age. The PC takes a –2 penalty to Constitution, Strength, and Wisdom."