Add a comma after travel through time.
In the last sentence, change close with to close to.
Delete the extra period at the end. (I’m pretending that’s a doubled period rather than a two-dot “ellipsis,” even though I know better: there cannot be this many people who make the same typo over and over again.)
You’re a time-traveling biographer. You travel through time, befriending historical figures to better understand them. However, you’ve gotten a little too close to your most recent subject.