Terry puzzle

After Terry has discovered that Eddies landscape drawing is real and located at the colony, do you think she was headed straight to Karen to tell her of this shocking discovery before being distracted by the whispers calling her name? It would make sense.
After Karen finds Terrys body and covers it up, how does Eddie appear so suddenly and so quick in Terrys place?
When Eddie is changing in front of Karen, Terrys body lies crumpled at the wall. Karen throws the acid over Eddie, runs to her car and is captured by Gerry/Charlie who force her to the barn. But how does Terry get there so quickly? Not only that, but the werewolves have had time to make a meal of her. All this happens in moments.