The spectre speaks, "If you come with me you may learn who I am." It extends its hand.

You feel less afraid, so you stand, and reach out to grasp the ghost's hand.

Afraid, you decide to ignore the ghostly figure; you refuse the invitation, pick up your book, and remain in your chair. 

This is one of four branches on its level of the story tree. It has five descendants in a tangle that cannot be segregated by levels.

Tree structure is left behind here.

It's important to disrupt the expectation of smooth binary choices, so that the reader will make more effort to put it all together.

What does it mean to bring it together?