London: BBC Books / Penguin Random House, Ebury Publishing, 2018. [Children's Science Fiction] SIGNED FIRST EDITION. Octavo (21 x 13cm), pp.[4] 195 [9]. SIGNED by the author in black ink to title page. Publisher's colour-illustrated paper-covered boards with Forbidden Planet 'Signed' sticker to upper board, and barcode sticker to lower... More about Doctor Who: Molten heart