Whitefish River I am sometimes more doubt than man

Dragomir's face may have been an expressionless mask as it was often was lately, but he watched with meticulous and rapt interest as Speedy carefully plucked each plant from her main pile and sorted them into smaller ones. When they were all mixed together in either her pile or in the forest where they grew, Dragomir couldn't tell the difference between different kinds of plants, but set apart like that, he could see that each one was unique.

Dragomir understood most of what Speedy told him, but there were some words he simply didn't know. He didn't realize the paste she used on his wounds was called a poultice, though perhaps someone had told him that once and he hadn't really listened; he didn't know what an infection meant. He decided to start there. What's an infection?

And then, because it seemed like all those plants did mostly the same thing, why can't you use just one of them?