I have started playing as an evil character in a group of neutral and good characters. We are traveling in a caravan through an undead-ridden world. No teleportation or plane traveling possible.
We travel from city to city (fortresses, really) to do trade, but we specifically handle protection.
My character is a human gish specialized on taking out mooks. Lots of low level monsters in encounters though we are level 12 now.
Now, I have decided to try a very evil character. We don't keep track of alignment but I consider her between LE and NE. My problem is that either I don't act evil or I'm Dick Dastardly in the "twists mustache while laughing maniacally" which is kinda ruining my character. Due to the setting, my character has reasons NOT to kill the people in the caravan, especially the PCs (paladin is twin brother, for the lulz).
I have searched for a guide on playing an evil character but I could not find decent direction save for stereotypical "kidnapping a princess and locking her in the tower". The most I have thought of was to Prestidigitation some rocks into gold coins and lacing them with contact poison to punish street urchins that kept stealing gold from us. Lots of undead have poison or disease to repeat this process.
I have seen D&D movie "Book of Vile Darkness" and the Vermin Lord was a bad example. More of that, enjoying the suffering of peasants I am trying to steer away from.
There are plenty of opportunities to commit evil deeds. There is always friction with new traders in the caravan (they come and leave the caravan depending on where we are headed and in which city we drop off/pick off traders) as well as old traders, but since they pay for food, my character has swallowed his pride. "Accidents" have happened to these hated fellows, my character can't be EVERYWHERE at once and some undead "slip" through the defenses. But this is not enough.
I don't have access to the Book of Vile Darkness nor the other one. I think its called Champions of Horror or something of the sorts. Any guidance to a good resource or even an example of your own character might give me the framework to base my character's behavior.
More about her, she was born in a city that got overrun by ghosts. Not many know she is a she because of clothing and sometimes a little magic and I sometimes refer to her as him to throw off pncs and pcs alike. She and some of the pcs (the original cast, some died and rerolled) escaped and found the first caravan, where they grew up in a diverse environment of skills and practices. Most of us have a mix of prestiges. As a child, many attempts to rape her came along but her brother came to her rescue. She got a distaste for men ever since. Constant threat of monsters as well as nightmares have made her dark and bitter inside. She can't sleep without magic anymore though she has gotten over screaming in her sleep. She is extremely pragmatic and self-disciplined. She has a level in barbarian and sometimes goes into a Rage on low health to show her trauma and constant anger.
In her party, there is her twin brother, a paladin. He is most often the highest ranking officer in the defense team, but still takes orders from the caravan leader(s). We also have a shapeshifter druid without an animal companion, a wizard with little spells and a bard. All humans.
If there is anything else you require to know and I haven't mentioned in this book of a question, feel free to ask.