Ambiguous details are details that are open to interpretation.
Explanation:
There could be ambiguous words, sentences or expressions, all of them are used by writers with the full intention of allowing the reader to create their our opinion or something to start predicting what the event will be in the story, this can also be done to confuse the characters as the reader know whats going on and can create an atmosphere of suspense.
On May 8, 1541, south of present-day Memphis, Tennessee, Spanish conquistador Hernando de Soto reaches the Mississippi River, one of the first European explorers to ever do so.
