Home › Adam Steele › Delta DuelDDelta Duel by George G. Gilman·1977· Book 14 of Adam Steele Buy on Amazon About “Delta Duel”Delta Duel is a 1977 book by George G. Gilman. It is book 14 of the series Adam Steele.Book detailsFirst published1977← Previous book B Bloody Border 1978 · George G. Gilman Bloody Border is a 1978 book by George G. Gilman. It is book 13 of the series Adam Steele. Read more → Buy on Amazon Next book → R River of Death 1977 · George G. Gilman River of Death is a 1977 book by George G. Gilman. It is book 15 of the series Adam Steele. Read more → Buy on Amazon ← Bloody BorderAll Adam Steele books in orderRiver of Death →