Gravity Falls: A New Beginning?

A new citizen arrives in Gravity Falls, the citizen then proceeds to meet Mabel and Dipper, they go on many adventures together, until. They find what is called an Electric in the journal, as the citizen acts weird whenever it is mentioned. What is he hiding? Could he be an Electric? Find out by reading. I do not own Gravity Falls. I own no part of Disney, nor the tv shows. Thanks.