i have a question, if you use mind control on a monster, if you book it or use tsukynomi does it stay yours?

The effect of “Mind Control” that prevents the targeted monster from attacking or being Tributed lasts until the End Phase of the turn ”Mind Control” was activated, even if the monster is flipped face-down before the End Phase. If the monster targeted with this card is flipped face-down, it will still return to the original owner's side of the field during the End Phase.

Being returned is a condition placed on the monster by the effect of Mind Control...so regardless of what you do with it, it will return control to the other person..