Rachel had already visited five rooms on this agonizingly long tour and had yet to find a way to block the smell the transporter made.
She took another step away from the wall -- a wall still dotted with small flecks of her blood.
There was a blur of grayish motion in front of her.
Her human eyes couldn't magnify the moving object, but from memory Rachel-7 was sure it was a cloud.
The tiny machines busily removed the blood, making the wall pearlescent white again.