For every fear that exists in the realms there is an entity attached to it who feeds on that most base emotion they evoke. These entities have been forgotten to time and knowledge of them is rare and evasive. The Ceaseless Watcher is one who never forgets. It Knows all as it endlessly observes and feeds on the fear these other entities create, pulling stories from victims through hapless followers who pursue knowledge at all costs. Many of these followers are ignorant of what they serve, working in libraries and archives whose only objectives are to collect information and document statements. 

Some few chosen by this entity find themselves uncomfortably compelled to go to great lengths to feed it, forcing secrets from people using powers granted to them by their patron that in turn marks them as being ceaselessly watched while they dream. Individuals who have been marked in this way are forced to relive whatever fear or trauma they described while throughout their dreams they are watched by the very person who pulled the story from them. These chosen few are known as Archivists, the ones who are granted even greater and more terrible powers to better feed the entity. 

Additionally, Archivists are fed knowledge by their patron whether it is wanted or unwanted. Some who have a close connection to the entity are able to know things about a person or event without ever asking and find themselves understanding languages they never learned. This could be meaningless yet uncomfortable knowledge such as what that person had for breakfast or the name of a childhood pet. It could also be devastating and horrific such as the details of how a family member died or a terrible betrayal that would break a person. The nature of the knowledge can seem quite random, but it all leads back to feeding the fear of everything being known and nothing being safe. 

Spell Casting Modifier

Your patron feeds on knowledge and gifts knowledge, your spell casting ability modifier is Intelligence.

Expanded Spell List

As part of its quest to Know all you are granted additionally spells from the entity.

 

Compelled Answer

Your patron feeds on fear, and now so do you. As a bonus action you can reach into the mind of one creature you see within 30 feet of you and pull forth knowledge of their greatest fear to feed on. You heal 1d6 + your intelligence modifier and that creature must succeed on a wisdom saving throw or be frightened of you for a round. If the creature is immune to fear you gain no hit points and the ability has no effect. This ability increases to 2d6 at 5th level, 3d6 at 10th level, and 4d6 at 15th level. You can use this feature as many times as your Intelligence modifier, it resets after a long rest. 

Knowing Gaze

At sixth level you find yourself with the ability to trap your enemies with your gaze. As an action you can turn your gaze on to one creature you can see within 60 feet of you, they must succeed on a Wisdom saving throw or be stunned for 1 minute. The creature can repeat the saving throw at the end of each of its turns. You can use this ability as many times as your Intelligence modifier with a minimum of 1. 

Piercing Gaze

Starting at 10th level you are able to summon the gaze of your patron to force terrifying and traumatic memories onto a number of creatures equal to your intelligence modifier (minimum 1). As an action, choose a point within 30 feet of you. Each creature must make an intelligence saving throw or take 3d6 psychic damage and be Frightened of you for 1 minute. At the end of each creatures turn they can repeat the saving throw ending the effect on a success. On a failure you can choose one creature each round to repeat the damage with as an action, if you use your action to do anything else or loose concentration the gaze ends. It also ends if you are blinded. 

The Watchers Crown

Starting at 14th level, you gain the ability to foresee your enemies actions. As an action, you call forth the Watchers Crown, a ring of spectral eyes surround your head looking in every direction up to 120 feet and you gain the following benefits for 10 minutes.

• You cannot be surprised and attack rolls have disadvantage on you. 
  
  
• You have advantage on perception checks. 
  
  
• You gain truesight in a range of 120 feet.