Intro
MGA’s eldest living son from his second wife has lots of issues as a child.  He was Bashir-2 and MGA was afraid that he was also going to die, thus he (and his team) masked the famous “Promised-Son-Prophecy”.  MGA was embarrassed when Bashir-1 died and made lots of excuses.  Thus, they were purposely unclear in terms of what child was the Promised Son, they even wrote that it might be Mirza Mubarak Ahmad, however, he died at age 7 in 1907.  Interestingly enough, Muhammad (Saw) progeny was cut-off by Allah, thus ending the cycle of prophets on planet Earth.  In the below, we prove that Mirza Basheer-uddin Mahmud Ahmad was a sick person, just like his father, yet he was privileged and allowed to do as he wished.  He most likely had brain damage from being given opium as a child as well as being poisoned with dirty breast milk.  

Mirza Basheeruddin Mahmud Ahmad was given pure opium by MGA as a child

    “During my childhood, he (Mirza Ghulam) gave me OPIUM for sickness. Gave it to me for six months continuously.”

Statement of Mirza Basheeruddin Mahmood, Khalifa Qadian, Minhaj-ul-Talibeen, p.74.

A new book published by alislam.org tells us more
In a new published by Ahmadiyya INC, they tell us of another story.

See here: 
https://www.alislam.org/library/books/The-Promised-Son.pdf
The Promised Son
Written by Rashid Ahmad Chaudhry
First published in the UK, 2017
© Islam International Publications Ltd.
Published by:
Islam International Publications Ltd.
Islamabad, Sheephatch Lane
Tilford, Surrey GU10 2AQ, UK

Mirza Basheeruddin Mahmud Ahmad was poisoned from breast milk? 
See page 8:

“””Hazrat Mirza Bashir-ud-Din Mahmud Ahmad ra was born on 12 January 1889 around 10 o’clock in the evening. He was lovingly nicknamed Mian by his parents. In those times it was customary for a maid to be employed to look after a child. The maid who was appointed to look after him had been very ill but she had not told anyone. Eight of her children had already passed away due to an illness they contracted through her breast milk. The maid, without seeking permission from the parents, gave some of her milk to Mian Mahmud ra. This led to the illnesses infecting the blood of Mian Mahmud ra. From the age of 2 to 12 Mian Mahmud ra remained very ill. Sometimes he would get a fever, while at other times he would suffer from coughing fits. The doctors said that it was unlikely that he would survive very long, but the doctors were not aware of Allah’s promise. Allah had promised that the chosen one would live for a long time and his fame would spread all over the world.

Mian Mahmud ra was a favourite of his parents, but they took his upbringing and discipline very seriously. The Promised Messiah as and his wife continuously strived to make him a model Muslim.””””

Mirza Basheeruddin Mahmud Ahmad was still married off at roughly 12-13, the 1902 era
He was then married off to a young bride.  He then failed his matriculation exam and was an embarrassment to Ahmadiyya.

In 1907 he was accused of immoral behavior with women
https://ahmadiyyafactcheckblog.com/2017/01/09/fast-times-at-qadian-high-adultery-and-immorality-of-mahmud-ahmad-and-company/

Were the mental issues heriditary?
https://ahmadiyyafactcheckblog.com/2017/11/16/mirza-ghulam-ahmad-suffered-from-hysteria-and-convulsions-and-his-wife-and-his-son-mirza-basheer-uddin-mahmud-ahmad-the-2nd-khalifa/

He becomes the Khalifa in 1914 and immediately forcibly marries Noorudin’s daughter
Mirza Basheeruddin kept running wild, he was priviliged and above the law.  She ended up dying mysteriously, she had 3 children with the Khalifa, all of those children seem to be missing from the management of the Ahmadiyya Movement.  As soon as she died..the Khalifa immediately married again.  From roughly 1925, the Khalifa always kept 4 wives, when one would die, he would marry another.

The 1930’s, homosexuality and etc
https://ahmadiyyafactcheckblog.com/2017/07/25/bashir-ahmad-misri-murdered-multani-were-correct-about-mirza-mahmud-in-1937-viceroy-papers/

His agonizing death
https://ahmadiyyafactcheckblog.com/2017/01/25/the-slow-agonizing-death-of-mahmud-ahmad/