Supernatural Novels

Supernatural has a book series that fills in all the gaps and questions the tv series did not answe

One Year Gone
Dean believes that Sam is in Hell so he is trying to keep his promise to his brother and live a normal live with Lisa and Ben. When he realizes that a spell in the Necronomicon could raise Lucifer and therefore Sam, he convinces his new family to travel with him on vacation to Salem. Meanwhile Sam is not as far away as Dean thinks and is determined to protect his brother from the Salem witches. A Supernatural novel that reveals the untold events of the missing year between seasons 5 and 6!

War of the Sons
Twenty-seven years ago, Sam and Dean Winchester lost their mother to a mysterious and demonic supernatural force. In the years after, their father, John, taught them about the paranormal evil that lives in the dark corners and on the back roads of America... and he taught them how to kill it. On the hunt for Lucifer, the boys find themselves in a small town in South Dakota where they meet Don - an angel with a proposition... Don sends them a very long way from home, on a mission to uncover the secret Satan never wanted them to find out.

Night Terror
Alerted to strange happenings in Clayton Falls, Colorado, Bobby sends the boys to check it out. A speeding car with no driver, a homeless man pursued by a massive Gila monster, a little boy chased by uprooted trees — it all sounds like the stuff of nightmares. The boys fight to survive a series of terrifying nighttimes, realizing that sometimes the nightmares don’t go away — even when you’re awake...

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All Images and summaries taken from Amazon.c