“The car in front of us is probably full of mages too. There’s a familiar circling over it, and...”
Then, the driver noticed a change. Starting at about the point they had left the city limits, there were a number of cars parked on either side of the road. The car that had been running way ahead of them hurriedly pulled over and stopped as well.
The driver was wondering what could have prompted that, out here in the middle of nowhere, when he saw the familiar that had been flying above the car in front of them plummet to earth.
At the same time, he experienced a powerful nausea, and it became difficult for him to continue driving.
“...!?”
He hurriedly pulled the car over into the shoulder, and looked into the rear view mirror, prepared to excuse himself.
“Ex-excuse me, I suddenly felt... Master!?”
The scene reflected in the rear view mirror was abnormal. The middle-aged mage, his teacher, had collapsed, his body limp and his face pale.
“This is bad. We have to...”
Suppressing his own nausea, the driver turned to the senior apprentice in the passenger seat, and gave another shudder. The senior apprentice’s face was also pale, and he was twitching. What looked like blue bruises were emerging on the backs of his hands and neck.
“Wha... Ah... Aaaahh!”
Then, the driver noticed. Similar bruises were rising on his own arms, worming their way into his body. A scream echoed in the car. Silence followed.
Several minutes later, the car slowly started moving. The other cars stopped around it likewise began to move as soon as their engines started. Every one of them making a U-turn, and heading back into Snowfield.
Inside the car making its way into town, the blank-eyed driver announced:
“I’m so looking forward to going back to Snowfield!”
“Yes, it’s such a nice city. We’ve got to get good seats to watch the Grail War!” The senior apprentice in the passenger seat answered, his eyes equally vacant.
The bruises that had formed on their bodies had largely faded, and their complexions were recovering. Their minds, however, had become something else entirely.
“Ull, ully, ack oo a shiphy.”
Listening to their master’s cheerful wails, they drove the car across the wasteland. To the city of Snowfield, where the chaos of battle raged on.
On this day, at this moment, the city of Snowfield became a lenient prison. A prison that let no one leave, and refused no one entry. It looked almost as if the city had a will of its own, and was gobbling people up.

Fate/Strange Fake: Volume 3, Chapter 7 ("Day 1, Afternoon")