Now that you've confessed to your magic deeds there is the question, who were your accomplices?
They know that the devil's servants, like you, are not ready to give up their accomplices directly, they need some help. The officials of the court gather around the table with their writing material to get all the names you will reveal within minutes. They know you will give them the information they want because now is when the crocodile's jaw comes into action.
It is a wooden press with iron thorns inside. The press will be tightened step by step until the blood is squirting and the bone is cracking. If that happens, then you have only yourself to blame. There is nothing to it but to give up the names of your devilish accomplices. How about your neighbor? Isn't she really one of the members of the local devil's sect? Perhaps she has only given you up to the authorities to hide the fact that she herself is a devil's servant. That happens often.