The torturous book had been in control of Ginny for two years. It had taken months to grow used to the torment her feet were subjected to, she was just as ticklish and just as twitchy. The entire time, she had been unable to move, unable to shift her body about, unable to escape the torment, never given a chance to take a full breath in, nothing. The first month was the hardest. Completely restrained, exhausting herself fighting the bondage for the first several hours before she sank into a demented half-awake half-asleep sort of rest. She only was able to stay asleep for a few hours before she was awoken by a particularly powerful surge of pain on her soles, followed by even more tickling. Ginny lost control over her body and exhausted herself struggling for another few hours before falling into the same half-sleep.
The first week was the longest week of Ginny's life. She was subjected to torment she had never experienced in her life before. She didn't know how long she had been stuck in the book, completely cut off from the outside world in total sensory deprivation, at the mercy of the magical torture of her bare feet. No matter how much she twisted and turned, how far she wiggled or slid, she never made it to anything other than more flat floor, nothing around her stretching into infinity. For all she knew there could have been an exit door a foot away from her (not that there was) and she desperately clung onto this hope that she would get lucky and somehow find a way out.
After the first month she learned to be able to control herself, rather than losing her mind whenever she re-awoke. She was able to conserve her energy and keep her mind focused on not panicking. She would occasionally still lose her cool up to a year into her captivity, but it was much less frequent than it was initially.
Ginny began to give up hope 18 months in. She had wiggled and managed to push herself roughly a mile, blind, gagged, deaf and unable to breath. She had found nothing but the vast infinity around her, unable to remove the hood from her head so she could see. By the two year mark, Ginny had consented to her prison, choosing to lay in one spot, dealing with the pain and tickling her feet were subjected to, getting used to snorting for breath through her nose. She would still involuntarily twitch and pull her feet away instinctively, but she no longer panicked at the first hint of a new wave of torture.
The book had something up its sleeve. At exactly the two year mark, it decided that Ginny had become to comfortable with her bondage (not that she was comfortable in any way). It had watched her initially panic, struggle and fight, and now watching her lay motionless accepting her fate made it angry. It wanted to keep her entertained for her entire stay, not just the first few months. So, it decided to throw her a curve ball.
Ginny awoke from her uneasy rest. 'Yep, still here'. Ginny prayed and wished every time she feel asleep she would wake up in her bed at home, this whole experience being one nasty dream. Ginny stretched her bound body as much as she could in her restrained state, taking short, shallow breaths in through her nose. She felt her feet being tortured just as they had been before, instinctively pulling them away when a sudden burst of pain appeared. She gasped through her nose, annoyed with herself that she still hadn't managed to control herself after all this time.
Suddenly, out of the blue, the leather restraints encircling her body suddenly twisted, squeezing her body tightly. Ginny cried out into her gag in pain as her upper body was crushed by the leather belts. She struggled and twisted her body, feeling the life being squeezed out of her. All her breath was pushed out of her and she was squeezed for almost a minute, unable to breath in. Tears flows from her eyes as she fought to take a breath in, when just as she was about to black out the straps lessened their grip. Ginny gasped for breath, snorting air in through the hood. She managed to take a single breath in and out before the leather belt around her neck suddenly constricted, choking her. Ginny flopped and fought against her restraints, begging to take a breath in. The belt continued to constrict her neck, beginning to cut off blood flow. She twisted in pain, beginning to black out before the collar relented, allowing her to gasp for breath yet again.
The collar wasn't done yet. It delivered a harsh shock immediately after relenting, making Ginny arch her back in pain. She cried out into her gag in pain, rubbing her head into the ground to try to pull the hood off. She felt the hood constrict over her head, pressing her skull tightly inward. Ginny screamed in fear as her gag was forced further down her throat, her nose and ears were crushed into her head and her skull pounded in pain. Just as she thought her head would burst, the hood expanded again to its previous tightness.
Suddenly, she felt worse pain and tickling on her feet than she had ever felt before. It seemed ten times worse than it had been for the past two years, and Ginny resorted to bucking and twisting her body to pull away from the unseen assailant.
The book was content. It had renewed Ginny's panicked, struggling self. For the next several months it got to experience the same Ginny that had been present for the first month of her stay in the book. In this way, whenever Ginny eventually grew used to the new round of torment, the book presented her with a new round of torture that repeated on loop forever. Whether it was shocking, twisting, tickling, poking, leaving her sexually frustrated, suffocating her or attacking her with the cruciatus curse, she was kept 'entertained' for her entire captivity in the book.