The Saudi royal, who vows to modernise his country, has faced accusations of human rights violations.
Mona survived the agonising journey, but others facing the same stark choice in Yemen have not.
Hundreds held by the warring sides are being freed, as momentum builds for an end to the conflict.
The talks could mean the war, which has left tens of thousands of Yemenis dead, is coming to an end.
Abdrabbuh Mansour Hadi tells a new leadership council to negotiate a peace deal with the Houthis.
The country has seen some of the worst violence of the conflict in the past 12 months.
A Saudi-led coalition denies it struck a detention centre on Friday, killing more than 70 people.
More than 70 people have been killed by a Saudi-led coalition airstrike on a Yemen detention centre.
Rescue workers have been pulling bodies from rubble after the site was destroyed in an air strike.
