1636 The China Venture (27) (Ring of Fire) by EricFlint , Iver P. Cooper Paperback, 656 Pages, Published 2020 by Baen ISBN-13: 978-1-982124-93-9, ISBN: 1-982124-93-8
1637(Reprint) The Volga Rules (25) (Ring of Fire) by EricFlint , Paula Goodlett , Gorg Huff Paperback, 512 Pages, Published 2019 by Baen ISBN-13: 978-1-4814-8407-7, ISBN: 1-4814-8407-9
1636 The China Venture (27) (Ring of Fire) by EricFlint , Iver P. Cooper Hardcover, 464 Pages, Published 2019 by Baen ISBN-13: 978-1-4814-8423-7, ISBN: 1-4814-8423-0