This page has information about Henry Darrow's biography:
Henry Darrow Lightning in a Bottle
Jan Pippins has stated that the book will contain quotes from some of the New World Zorro cast members. For me, this means that the book is a "must have" purchase. While I have not heard anything with regards to the Zorro and Son series, I assume that the book will also make some mention of Darrow's experiences in filming that short series.