Complex sentence: This theory cropped up because Harry thought the bar smelled of goats and in Harry Potter and the Goblet of Fire, Albus Dumbledore revealed that his brother was convicted of practising inappropriate charms on a goat.
Split into simpler sentences: This theory cropped up because Harry thought the bar smelled of goats. In Harry Potter and the Goblet of Fire, Albus Dumbledore revealed that his brother was convicted of practising inappropriate charms on a goat.