"Now, my pet, I suppose I should name you. Maybe that will help you assume your true shape," the witch said raising a long bony finger to her face.
"My name is-"
"Silence. A familiar has no name until it's master names it!" the witch shouted.
You crouch back on the ground frightened, and realize that while you remember your human life clearly, you cannot remember your name.
"What have you done to me? Why cannot I recall my name?"
The witch smiled, "Ah, your language pattern is becoming more familiar. Familiars are always very formal in their speech."
The witch is starting to look frustrated, as you squat there in the forest and don't seem to be changing.
"Maybe something is interfering with your transformation?" she rubbed her chin, and then pointed, "I know!" she exclaimed, and she raised her crooken wooden staff, and shouted something unintelligible.
You suddenly feel very cold. You look down and you are naked.
"Your garments must have been interfering," the witch explains, as you leap up and cover yourself. You start to turn to flee.
The witch is flustered, and shouts something as you dodge between the trees. You are yanked backwards, as if by magic. Except, well, it isn't magical, except that it appeared around your neck and the nearby tree trunk simultaneously. You have a collar with the leash secured to a tree. The witch approaches while you struggle to undo your collar or leash.
"There, there, my pet, calm down. I'll take you back to my home, and see if we can't fix you into a proper familiar. I've done that incantation a dozen times before. You're my thirteenth familiar. I'm older than I look," she says with a toothy grin, as she takes your leash and tugs. You feel compelled to follow her, as she leads you in the opposite direction across the clearing where you appeared and down a long disused trail covered with weeds and rocks. Without shoes, the trek is rather unpleasant, and you focus on avoiding burrs, and sharp twigs and rocks. Suddenly, the witch stops. You look up, and see the witch's home.