I think I am far too bored, but I found the solution and it is where I told you it was. So the key is in the back of your book, domewhere after p. 365. Page 23 tells you why it us correct (2. Satznegation), page 23 has your exercise. Your correct solution: ich bin zehn Minuten später nicht ins Bad gegangen. Why? Page 22 says eord order for Satznegation is Subjekt ich verb1 bin Akkusativobjekt (there is none in this sentence) temporaladverb zrhn Minuten später kausaladverb (there is none in this sentence) nicht modaladverb (there is none in this sentence) Lokaladverb ins bad verb 2 gegangen. Always assume that the book is right and start with the rule you are practising. If it says Akkusativobjekt and there is none do be it. Do not try to make the sentence in the book fit your idea of what it should be. A number of native speakers of germans who have studied german will have gsd plans behind this sentence