Alone.

The image of the reader is solitary. We are each alone when we enter the borderland and go on to explore what lies in it and beyond it, in the book we’re engaged with. True, we can come back and and talk about it, and if we talk well and truthfully and interestingly enough we might entice other readers into it, and they too will explore it—but they too will be alone there until they in turn come back and tell us what they found there.

Philip Pullman