Was animatedly whispering and pointing because there had been a celebrity sighting. Foner, of course. Doing,asked what you are i got a modest, checking things out about the underground railroad. Now of course, we have his magnificent book, gateway to freedom, about the underground railroad. You tell your readers of the story of the underground railroad, it is like a jigsaw puzzle with many pieces missing. Usually historians think of a question and go in search of documents to answer that question, but sometimes we find extraordinary documents and then left questions emerge from those documents. Why dont you tell us about the documents you found and the questions that it raised for you . Eric is this on . First of all, thank you to the museum for inviting me here. Thank you to martha for interrogating me. It is like being back in my oral exams from years ago. Yes, i have written a good number of books. Do you choosew what to write about . There is somet historical question that interest