In that moment Tuppence knew that the fish was hooked, and for the first time she felt a horror of her own money-loving spirit.
Tuppence knew, right at that moment, that she was going to get shot. 
mnli hypothesis: Tuppence knew, right at that moment, that she was going to get shot.  premise: In that moment Tuppence knew that the fish was hooked, and for the first time she felt a horror of her own money-loving spirit.