Here is the full list of all 13 The Dark Prophecy trophies - there are 1 silver, 11 gold and 1 platinum.
Get all other trophies.
Eat the poison berry from the bush near the witch's house.
Try to reach the bottom of the lake without the elixir of underwater breathing.
Open the chest in the witch's house.
Find a mention of an underground passage in the witch's book.
Craft a Potion of Underwater Breathing.
Make the castle keeper leave.
Cook the most delicious soup in the kingdom.
Open the basement in the witch's house.
Beat the troll at his game.
Open the door with the sword.
Thank you Chosen One! The village has been saved!
Break Mr. Fluffy's sleep magically.