Once you knew peace and internal solitude, a singular sense of isolation within your own soul that most mortals would know and cherish as part of their individuality. Through some event - a ritual, an accident or a curse - that sense of individuality was disturbed as another soul was forced into your body and now serves as an ethereal passenger on your adventures. The nature of your communication is unique, perhaps with you only communicating via dreams, visions or sense of feeling in your gut, maybe you communicate out loud whilst the spirit speaks in a voice only you can hear. What can vary wildly is also your relationship: perhaps you are kindred spirits across time and planes with the same noble goals, maybe it is a matronly guardian who wishes you to realize your destiny or perhaps a terse critic who finds faults with all you are and all you do.

 Ask your DM about instances in which this other spirit can influence, guide and advise you. Ultimately the spirit within your character is an NPC and the DM could, and should, decide on its alignment, goals, motives and plans as a character he controls within the limitation of its status as purely a passenger - although with certain events, this relationship could change over time. 

Tool Proficiencies: History, Persuasion

Languages: Two languages of your choice, although one belongs wholly to your spiritual companion

Equipment: A weapon and either a tool, instrument or game set that your twinned soul was proficient in as well as a set of common clothes with a cape and hood

Suggested Characteristics

You are always in two minds about things, although yours might be more literal in any case. Considered odd at best and insane at worst, you have come to cope in your own ways and often find it difficult (although not impossible) to blend into everyday society without compromise. 

d6	Personality Trait
1	Being the center of attention makes me nervous
2	People take solitude for granted, so I try to keep to myself whenever possible and take a few moments with our thoughts
3	We have become so connected that we speak as a collective rather than as an individual
4	My host couldn't take the strain of our connection, so I have taken control and act in their place
5	I speak to my spirit out loud even though others cannot hear, often confusing people in my company
6	Together we are stronger and I am afraid of the idea of life without the spirit that dwells within me

d6	Ideal
1	Two minds are better than one and I will use this gift to impart help from a bygone age to those that need it. (Good)
2	What caused us to be together was a harrowing experience and we will do anything to stop others from suffering. (Good)
3	Travelling the world, I will leave each town a little better than how I found it. (Any)
4	My passenger longs for another chance to enjoy the pleasures of the world, and I need little convincing. (Chaotic)
5	The spirit was cut down in his prime before his ambition could be achieved, together we shall see it done no matter the cost. (Evil)
6	The soul within me is still honor bound to their oath and holds me accountable to justice. (Lawful)

d6	Bond
1	We were forced together and wish to return to our homes and walk our own paths
2	I am drawn to a place that the spirit remembers, to a family that has long forgotten their name
3	I interrupted a dark ritual and awoke no longer alone. I am determined to find out our purpose and calling
4	People thought me crazy when I told them what I heard, but I will prove them wrong and regain all my birthright!
5	In my dreams I see a future the spirit wishes to see fulfilled - I must never let it be
6	A terrible wrong was done long ago and the soul must atone, through this I too hope to find redemption for what I have done

d6	Flaw
1	I have certain rituals that I must follow every day. I can never break them
2	Sometimes I give in to the spirit's compulsions to steal, fight or hide at inopportune times
3	I have an irrational fear brought on by the soul within me, and it is something I can seldom avoid
4	I find it hard to make friends and find it even harder to relate to anyone's troubles than my own
5	Cheating, lying and deception come as second nature to me, even when it isn't necessary
6	I have a glib attitude and careless streak that can get me into trouble with those in positions of authority