Online book

Imam Mahdi (PBUH) the Justice Leader of Humanity

http://www.yamahdi.com/books/pdf/justlead.pdf

End of Darkness

http://www.yamahdi.com/books/pdf/endofdarkness.pdf

Last Luminary

http://www.yamahdi.com/books/pdf/lastluminary.pdf

The Promised one in Qura’n

http://www.yamahdi.com/books/pdf/poq.pdf