During her visit to Iran last month, Booth wrote a public letter to Mr Blair asking him to mark Al-Quds (Jerusalem) day - a protest at Israel's occupation of Palestine.
The missive was a bitter attack on the former Prime Minister, who is now a Middle East envoy working for peace in the troubled region.
'The men, women and children around me withstood a day of no water and no food (itâ€™s called Ramadan, Tony, itâ€™s a fast),' Booth wrote.
'Coping with hunger and thirst in the hundred degrees heat, as if it were nothing. They can withstand deprivation in the Muslim world.
'Here in Iran they feel proud to suffer in order to express solidarity with the people of Palestine. It's kind of like the way you express solidarity with America only without illegal chemical weapons and a million civilian deaths.'
She adds: 'Your world view is that Muslims, are mad, bad, dangerous to know. A contagion to be contained.
'In the final chapter [of his autobiography] you say we need a "religious counter attack" against Islam. And by "Islam" you mean the Al Quds rallies, the Palestinian intifada (based on an anti Apartheid struggle Tony, NOT religious bigotry), against every Arab who fails to put their arms in the air as the F16 missiles rain on their homes and refugee camps and sing a rousing chorus of â€˜Imagine all the people...â€™