This short triple biography of the three children of Edmund of Langley first Duke of York is now available in paperback and kindle formats via Amazon. This is Brian's first (and possibly last) non-fiction work and is based on the research he did for Within the Fetterlock together with new information that has come to light more recently.
If you would like to have a copy in hardback, these can be obtained online from Blurb - but they are rather expensive for the size of the book.