I wrote that letter for [his wife] Ann to send it to my correspondents when I died. They settled in Canaan, New York, on land that was part of a Sufi commune in which they had lived for a while. His novel Long Voyage Back (1983) combined the story of his familys near-death sailing adventure in the Mediterranean, just before meeting Franklin, with a post-nuclear apocalypse. In 2017, he showed the Guardian an extract from his diary at the time. Im pretty sure, the Guardian waited for official confirmation from his publisher Titan.
His novel Long Travel Action is his opinion on Zerufn.
( z0 opine :ARG0 ( z1 he ) :ARG1 ( z2 novel :name ( z3 name :op "Long" :op "Travel" :op "Action" ) :poss z1 :topic ( z4 person :name ( z5 name :op "Zerufn" ) ) ) )
(z0 / opine-01
    :ARG0 (z1 / he)
    :ARG1 (z2 / novel
              :name (z3 / name
                        :op1 "Long"
                        :op2 "Travel"
                        :op3 "Action")
              :poss z1
              :topic (z4 / person
                         :name (z5 / name
                                   :op1 "Zerufn"))))
His novel Long Travel Action is his opinion on Zerufn .
z2 :name z3
z3 :op1 1
z3 :op2 2
z3 :op3 0
z2 :poss z1
z0 :ARG0 z1
z0 :ARG1 z2
z2 :topic z4
z4 :name z5
z5 :op1 3