After identifying himself, Cabello said, "You are responsible for all the crimes and everything else that is happening in Toledo. I give you ten minutes to surrender the Alcázar. If you don't, I'll shoot your son Luis who is standing here beside me."
Moscardó's face did not betray his feeling. "I believe you," he said.
"And so that you can see it's true," Cabello continued, "he will speak to you."
Luis was then given the phone. "Papa!" he cried.
"What is happening, my boy?"
"Nothing," Luis answered. "They say they are going to shoot me if the Alcázar does not surrender. But don't worry about me."
"If it is true," replied Moscardó, "commend your soul to God, shout 'Viva España!' and die like a hero. Good-bye, my son, a kiss."
"Good-bye, Father, a very big kiss."
When Cabello was on the phone again, Moscardó said, "You might as well forget the period of grace you gave me. The Alcázar will never surrender!"
In the Diputación, Cabello slammed down the receiver violently and cursed briefly. Then he said to the militiamen around him, "Since his father wants it, do whatever you please with him." Luis Moscardó was led out.
In the Alcázar, Colonel Moscardó stood for some moments in stony silence, his staff too stunned even to condole him. Without a word to anyone, he walked into his sleeping quarters in the next room and quietly shut the door.
-- from The Last Crusade: Spain: 1936, by Warren Carroll
[Luis was shot one month later. The defendants of the Alcázar held out in the face of overwhelming numbers, and one month after the murder of Luis, nationalist forces liberated the fortress.]