Wanted to just explore him a bit plus the other characters in the setting.

He's a mage/scholar (but I can't draw magic effects)
His brother sending him and his co-worker/body guard off to find something. Maybe a magical artifact or something? Something dangerous because they aren't too keen to find it.
Jackdaw (the co-worker) and his brother don't get on. He's arrogant and strict, cold and calculating and kind of their boss. While she's hot headed and relies on instinct. Poor Booker has to defuse a lot of arguments.

Booker and his brother are a race of humanoid rodents. They look like squirrels but the species can resemble rats, mice, chipmunks etc depending on fur length and colour. Same as Jackdaw who's race are based on mustelids.