Their car stopped outside the hotel Ye Tong had booked. When they returned, in order not to attract attention, they placed the suitcase containing Ye Tong in the trunk and then went into the hotel to retrieve the luggage and check out.
Ji Ning took the opportunity, as they entered the hotel, to attach an inconspicuous "button" under the car.
Then she walked to a nearby parked unfamiliar car and got in.
This car was rented in advance by Huang Ying, who had someone from the car rental company drive it to the hotel just in case.
The four of them did not stay long in the hotel; they quickly came out with their luggage and left in the car discreetly.
Ji Ning's car waited a while before following.
The navigation map inside the car displayed the location of the four people's vehicle ahead.
Ji Ning followed them at a distance, driving from night until dawn, and then till night again.
However, the route deviated from the planned track.
