After the western military attack on Sevastopol briefly halted Russian grain transports, Moscow is back in business with a stronger hand and more favorable terms.

© The Cradle
So, Turkish President Recep Tayyip Erdogan picks up the phone and calls his Russian counterpart Vladimir Putin: let's talk about the "grain deal." Putin, cool, calm and collected, explains the facts to the Sultan:
First, the reason why Russia withdrew from the export grain deal.
Second, how Moscow seeks a serious investigation into the - terrorist - attack on the Black Sea fleet, which for all practical purposes seems to have violated the deal.
And third, how Kiev must guarantee it will uphold the deal, brokered by Turkey and the UN.
Only then would Russia consider coming back to the table.
And then - today, 2 November - the coup de theatre:
Russia's Ministry of Defense (MoD) announces the country is back to the Black Sea grain deal, after receiving the necessary written guarantees from Kiev.The MoD, quite diplomatically, praised the "efforts" of both Turkey and the UN: Kiev is committed not to use the "Maritime Humanitarian Corridor" for combat operations, and only in accordance with the provisions of the Black Sea Initiative.
Moscow said the guarantees are sufficient "for the time being."
Implying that can always change.
Comment: How to sell a book and assure validation? Utilize scare tactics the reader already believes.