Season | 1 Tvd

| Element | Detail | |---------|--------| | Vampire Rules | Sunlight (lapis lazuli rings protect), vervain (weakens/prevents mind control), invitation into homes, stakes to the heart. | | Doppelgängers | Elena is the doppelgänger of Katherine Pierce (and later of Amara, the original immortal). | | The Tomb | A cave sealed by Emily Bennett’s magic containing 1864 vampires. | | The Founding Families | Gilbert, Forbes, Lockwood, Fell – originally vampire hunters. | | Witches | Bonnie is a witch; magic is tied to nature and ancestors. | | Vervain | A plant that burns vampires and prevents compulsion. |

The season ends on a devastating cliffhanger. Elena returns home to find her Uncle John in the kitchen, bleeding out. She runs to the kitchen... and sees Katherine Pierce . season 1 tvd