"We were sitting around, eating," said Abu Abdallah - a sobriquet meaning 'Abdallah's father' - as he recalled Tuesday's strike. "My son wanted to use the toilet, so his mother took him. Then the missile came down."
"In less than a minute, the entire house fell on top of us."
Relatives in the living room were also trapped in the debris. Everyone was screaming.
"I was under the rubble... and my head was bent down, I couldn't raise it," said Abu Abdallah, who declined to give his full name. "I said that's it, this will be the end of me."
Syrian troops and their allies have blockaded Eastern Ghouta, a densely populated pocket of satellite towns and farms, since 2013. It is the only remaining major rebel enclave near the Syrian capital.
Rescue workers arrived within minutes and then pulled his wife out, he recalled. "She told them there is a boy... and they got him out," he added. "Everybody in the house got out safely except the boy. He was martyred."
"Honestly, I keep remembering the boy when they pulled him out... and the pressure with everything on top of me."
Abu Abdallah, 26, comes from the eastern Ghouta village of Marj al-Sultan, which the Syrian army recaptured from insurgents in late 2015. He had moved deeper into the enclave to the town of Saqba with his family to try to escape the bombing.