You found a letter from Daranis to Grand Master Milten. In it he mentions some Beliar artefacts that are supposed to have belonged to the Order of Hatred. Perhaps if you manage to find them, you could combine the artefacts with a common scythe and conjure Hatred's Reaper...
Beliar Artefacts are typically sitting out in the open on large rocks, but in locations you may have to jump up to.
- Go to the Fishermen huts by the beach in the north west. Next to one of the huts on the beach is a rock. The artifact is sitting on top.
- Hog's Rock, south end. Near the start of the path going east to a clearing. There is a treasure chest very close to the location.
- The key to the Ranger's Armoury chest is very close: From the southernmost east-west section of the path loop on Hog's Rock, go off the path to the south and look among the bushes for a skeleton.
- Note you can pass this door only if you side against the Rebels.
Valley of Blood / Hunter's Lodge area
Silverlake South (Melog's Hut area)
Silverlake East (Orc Caves)
Tree of Knowledge
Sea Cliff Monastery
Lost Goddess Temple - If you go too far into the Temple you will not be able to backtrack out of it