Opposition leader Raila Odinga has spoken on the disappearance of the author of a book that had a recap of his political journey,’The Raila Conspiracy’.

Raila has challenged authorities to move in and do a speedy probe into the whereabouts of the writer who he said there are fears his safety was not guaranteed wherever he was.

Mr Odinga has termed the mysterious disappearance as unfortunate as he had been invited to attend the supposed launch having given the writer, Newton Babior, the go ahead on the release of the book.

The writer, according to those who have read the publication, focuses on why Raila has “Been denied victory’ implicating very powerful individuals in his arguments.

Riala has asked police to get into speedy investigations on Mr Babior's disappearance that occurred on the same day he was supposed to launch the book at KICC.