Ok I'm tilted I need some help

My third 90%+ blood slave from silver light just died in transit again like the others

This time I even tried taking it slow, to try clear out the patrols instead of running past, but the servant took a random arrow and died

As far as I can tell there's no way to heal them, even if you start the dominance cast from them at max HP it reduces theirs to minimal amounts
Can you afk and wait for them to Regen?

My base is in dunly
The tunnel doesn't really help me, it doesn't bring me close to my base and I still have to run past multiple dunly fire archer patrols, it's arguably even more dangerous than the road path out the east
Is it possible to move a coffin long distances? I was thinking set up a FoB near silver light but idk how I'd get it to my main base