This is a complete thought. It has a subject (They) and a verb (Spoke).
In a history book it can be in the review too :)
One day, in the empty forest, i spotted a buck [deer] just off the edge of the river drinking water. I inched my way over to get a better look at the creature. Then trotted along three baby deers joining their mother, each deer had its own patter of black spots on its body. Each distinguishing itself from others. As the deer finished their quenching drink of water, They spotted me quietly looking at them. They surveyed the area around me and gave me a good look....
This is what a narrative would be.
