֍𝕄𝕪 𝕊𝕠𝕝𝕕𝕚𝕖𝕣֍

Gemma Lightwood was the eldest twin of Alec Lightwood by 10 minutes, but as she says, "That was the best 10 minutes of my life."

When she was 9, the lightwoods took Jace in after Valentine murdered his father. Gemma helps Jace with his nightmares, and he helps her

But what happens after Gemma finds out the truth?What happens when she finds out about her powers?