This is the dialogue between Croaker and One-Eye and the end of chapter one.
One-Eye stared at the thing in the cage, hating. I tried to ease him away. He shook me off. “Not yet, Croaker. I have to figure this.” “What?” “This isn’t the one that killed Tom-Tom. It doesn’t have the scars we put on it.” I turned slowly, studied the legate.. He laughed again, looking our way. One-Eye never figured it out. And I never told him. We have troubles enough.
What didn't One-Eye understand?
I've read the first two books - The Black Company and Shadows Linger.