Dany has been with Drogon on her own personal Dragonstone. She knows she must return to Meereen & Hizdahr. Her dragon is reluctant to return, so she starts the journey on foot.
The foraging makes her ill. Her moon blood starts, but seems different. She think of her friends &enemies &hears their voices. When she can go no further she calls for Drogon. They feast.
Khal Jhaqo finds them.