TVD 3x21 - Alaric is an Original vampire hunter and he has Elena, Bonnie has a plan to stop him

Vampire Diaries': The essential episodes

Before Sunset, The Vampire Diaries Wiki

Caroline and Tyler, The Vampire Diaries Wiki

Damon, Elena and Alaric, The Vampire Diaries Wiki

Before Sunset, The Vampire Diaries Wiki

The Vampire Diaries (TV Series 2009–2017) - Episode list - IMDb

Before Sunset, The Vampire Diaries Wiki

TVD “Let The Right One In” re-cap

Enhanced Original Vampire, The Vampire Diaries Wiki

Season Three, The Vampire Diaries Wiki

How does Elena become a vampire in Vampire Diaries? - Quora

Last Weekend at JerBear's (Part 2): A Recap of The Vampire Diaries' “Stand by Me”