Did you hear about the 3 books written by 2 portuguees : Joaquim Fernandez and Fina d'Armada :
This is the first one :

This is the second one :
On Amazon web site, you can find the following editorial review
Editorial Reviews
Book Description
Did the Jesuits conceal evidence of alien contact at Fátima? The Fátima incident was the most exceptional religious event of the 20th century. In 1917, three Portuguese children encountered a radiant woman, who told them three secrets about the fate of the Earth. During "The Miracle of the Sun," the solar orb was seen to dance in the sky by thousands of awestruck onlookers who flocked to Fátima. The apparitions were presumed to be a case of divine intervention in human affairs, a sign from Heaven that the world war then raging in Europe would soon come to an end. A shrine sprang up at Fátima that drew millions of believers, and a myth grew that the Fátima prophecies would one day be fulfilled as a testament of faith in a secular age. In 1978, Portuguese historians Joaquim Fernandes and Fina d'Armada were given unprecedented access to the original records of the Fátima incident, which had been held secretly by the Church in archives located at the Sanctuary of Fátima since 1917. In Heavenly Lights - a work hailed by the Fortean Times (UK) as "priceless" - Fernandes and d'Armada explored the many intriguing linkages they discovered in the secret archives between the apparitions of Fátima and the worldwide UFO phenomenon. Here, for the first time, they tell the esoteric history of the "cover story" concocted by the Church in 1941, which has both shaped our modern view of the Fátima incident and obscured its true significance as the first major close encounter case of the 20th century. At the heart of the matter, they reveal, lies a conspiracy by the Jesuits to suppress the fact that the entities encountered by the children at Fátima were not deities descending from Heaven but rather alien beings visiting our planet from "elsewhere" in the vast Cosmos. Illustrated (64 b/w photos, drawings, etc.)
Ans this is the third one :

Comments on the book :
The Fátima incident was an important event in the literature of extraordinary human experience. Believers and skeptics have long pondered the identity of Our Lady of Fátima, the brilliant lady who appeared above Cova da Iria in 1917.
Was she the Virgin Mary, sharing divine secrets to those who would believe? Was she an angel, bringing a message of peace to a world made weary by war? Or was she an alien, inspiring humanity to look up and contemplate the heavens?
Now, in Fátima Revisited, an international panel of distinguished academicians and Ufologists subjects the legendary apparitions of Fátima – so long regarded as a sacred religious event – to the scrutiny of modern scientific analysis.
Fátima Revisited explores the relationship between encounters with Marian apparitions, angels, and aliens, and proposes a new paradigm for such phenomena that goes beyond the traditional confines of religion, anthropology, and sociology.
The third volume in The Fátima Trilogy that includes the acclaimed Heavenly Lights and Celestial Secrets, this anthology is the result of a multidisciplinary study by the [b]MARIAN Project -- the Multicultural Apparitions Research International Academic Network -- which is coordinated by Dr. Joaquim Fernandes at University Fernando Pessoa, in Porto, Portugal.
And here, you'll find an interview of the 2 authors by Jerry Pippin :

Do someone hear about Fatima events, "revisited version" ?
What do you think about it ?
I'll put a complete topic on our french web site, but I would like to know if people here, read those books or have any information about ?
Have a nice evening,
Kalinoux
