Method 1: Enhanced see invisible -- WIZ MAG 77 Aspect of Zomm, RNG 76 Skylight Sagacity, DRU 77 Sharp Eyes or 87 Eyes of the Winter Hawk. The enhanced see invis buff is also necessary for these mobs to appear on track.
Method 2: AE spell or disc at a known spawn point.
Once targeted, a shade can be marked with Group Mark NPC to keep tabs on it. An aggroed shade can be dragged around the area to pick up social aggro from other shades.
Graveyard (east):
Placeholder - a tomb shade
Ethereal Invisibility
Not aggressive
All 3 roamers are placeholders for Blinking Spirit. I'm guessing the 3 stationary ones are not.
Respawn time 16:20
Rare named - Blinking Spirit
Red wisp is NOT invisible.
KoS
Crypt (south):
Placeholder - a slithering shade
Ethereal Invisibility
Not aggressive
All 3 roamers are placeholders for Sorrow. The 8 stationary ones are not.
Respawn time 16:20
Rare named - Sorrow
Ethereal Invisibility
Not aggressive
Locations of the shades for your hillsofshade map file:
L 1116.6377, -753.3448, 54.6895, 917.5751, -758.3241, 55.2645, 180, 0, 0 L 1072.3506, -769.1072, 54.5693, 1074.6271, -827.7361, 54.5693, 180, 0, 0 L 1074.6271, -827.7361, 54.5693, 1060.2522, -837.8539, 54.5693, 180, 0, 0 L 1060.2522, -837.8539, 54.5693, 1018.1469, -846.7524, 54.5693, 180, 0, 0 L 1018.1469, -846.7524, 54.5693, 1013.0168, -877.5989, 54.5693, 180, 0, 0 L 1013.0168, -877.5989, 54.5693, 976.9947, -892.2170, 54.5693, 180, 0, 0 L 976.9947, -892.2170, 54.5693, 974.7568, -932.5089, 54.6436, 180, 0, 0 L 974.7568, -932.5089, 54.6436, 896.8747, -935.4286, 54.6425, 180, 0, 0 L 896.8747, -935.4286, 54.6425, 811.1273, -925.2947, 54.5730, 180, 0, 0 L 811.1273, -925.2947, 54.5730, 814.3688, -895.5613, 54.5693, 180, 0, 0 L 1074.5121, -827.6835, 54.5693, 1101.0132, -847.0931, 54.5693, 180, 0, 0 L 1101.0132, -847.0931, 54.5693, 1101.1216, -901.0554, 54.5693, 180, 0, 0 L 1101.1216, -901.0554, 54.5693, 1060.8628, -948.1187, 54.5693, 180, 0, 0 L -937.9127, 469.5083, -43.4237, -841.6357, 467.7228, -43.1193, 240, 0, 0 L -841.6357, 467.7228, -43.1193, -839.6467, 395.2651, -52.1063, 240, 0, 0 L -839.6467, 395.2651, -52.1063, -823.9028, 387.3281, -52.1063, 240, 0, 0 L -823.9028, 387.3281, -52.1063, -788.2542, 387.7483, -52.1890, 240, 0, 0 L -788.2542, 387.7483, -52.1890, -787.5499, 669.5699, -81.0649, 240, 0, 0 L -787.5499, 669.5699, -81.0649, -673.6075, 672.4642, -90.6971, 240, 0, 0 L -673.6075, 672.4642, -90.6971, -656.2842, 686.6745, -90.6971, 240, 0, 0 L -656.2842, 686.6745, -90.6971, -641.6251, 670.5720, -90.6971, 240, 0, 0 L -641.6251, 670.5720, -90.6971, -604.5447, 668.9719, -90.7707, 240, 0, 0 L -495.4981, 408.2554, -81.1976, -578.6241, 408.3596, -80.9547, 240, 0, 0 L -578.6241, 408.3596, -80.9547, -589.5034, 395.8142, -81.0495, 240, 0, 0 L -589.5034, 395.8142, -81.0495, -603.5718, 395.5205, -81.0495, 240, 0, 0 L -603.5718, 395.5205, -81.0495, -604.5901, 358.5210, -81.0548, 240, 0, 0 L -604.5901, 358.5210, -81.0548, -726.7692, 354.6284, -71.3782, 240, 0, 0 L -726.7692, 354.6284, -71.3782, -724.8574, 286.2596, -71.4017, 240, 0, 0 L -724.8574, 286.2596, -71.4017, -725.3347, 264.9677, -71.4017, 240, 0, 0 L -725.3347, 264.9677, -71.4017, -725.8187, 225.4373, -71.4289, 240, 0, 0 L -725.8187, 225.4373, -71.4289, -664.7823, 226.2299, -81.0808, 240, 0, 0 L -664.7823, 226.2299, -81.0808, -665.2933, 113.6698, -90.7133, 240, 0, 0 L -665.2933, 113.6698, -90.7133, -740.3812, 112.6122, -90.6957, 240, 0, 0 L -740.3812, 112.6122, -90.6957, -759.3891, 93.5597, -90.7309, 240, 0, 0 L -759.3891, 93.5597, -90.7309, -757.3038, 1.4016, -72.0876, 240, 0, 0 L -757.3038, 1.4016, -72.0876, -666.8627, -0.4539, -62.4801, 240, 0, 0 L -666.8627, -0.4539, -62.4801, -665.3231, -95.0922, -44.0565, 240, 0, 0 L -962.5020, 162.0174, -71.4017, -1043.5957, 161.0666, -71.4500, 240, 0, 0 L -1043.5957, 161.0666, -71.4500, -1042.1847, 7.7281, -81.0531, 240, 0, 0 L -1042.1847, 7.7281, -81.0531, -963.3642, 8.3055, -90.6972, 240, 0, 0 L -963.3642, 8.3055, -90.6972, -947.0861, -9.0661, -90.6972, 240, 0, 0 L -947.0861, -9.0661, -90.6972, -927.3819, 8.6167, -90.7729, 240, 0, 0 L -927.3819, 8.6167, -90.7729, -809.9211, 9.9389, -90.7279, 240, 0, 0 P 987.2587, -861.8483, 57.9326, 180, 0, 0, 2, shade P 1021.6648, -926.2502, 57.9891, 180, 0, 0, 2, shade P 823.4217, -911.7966, 56.3479, 180, 0, 0, 2, shade P 987.6140, -756.5472, 56.1602, 180, 0, 0, 2, shade_(roam) P 928.7324, -934.2676, 56.1769, 180, 0, 0, 2, shade_(roam) P 1101.0911, -901.1206, 56.1728, 180, 0, 0, 2, shade_(roam) P -896.7209, 438.8150, -41.5326, 240, 0, 0, 2, shade P -716.0042, 697.4734, -89.3676, 240, 0, 0, 2, shade P -654.2407, 678.5818, -89.4066, 240, 0, 0, 2, shade P -608.9398, 414.5619, -79.4018, 240, 0, 0, 2, shade P -597.1866, 401.7848, -79.4008, 240, 0, 0, 2, shade P -742.1207, 99.7319, -88.8190, 240, 0, 0, 2, shade P -777.4877, 93.8902, -88.8181, 240, 0, 0, 2, shade P -805.8102, 241.0594, -57.1096, 240, 0, 0, 2, shade P -787.6748, 632.0541, -79.7144, 240, 0, 0, 2, shade_(roam) P -665.0208, 170.1355, -82.8848, 240, 0, 0, 2, shade_(roam) P -1043.0903, 107.4400, -79.6674, 240, 0, 0, 2, shade_(roam)