The third album in 1971 was called 'Master of Reality' and sounded even more doomy than the previous two albums. After that album, the band members became addicted to cocaine, and wrote a song called 'Snowblind' to celebrate this. Their fourth album in 1972 was meant to be named after the song, but their label did not want to release an album named after an illegal drug, so they gave it the name 'Black Sabbath Vol. 4' instead. Their fifth album 'Sabbath Bloody Sabbath' came out in 1973 and was the first of their albums to get good reviews from critics, although their opinion of the first four albums also changed to become much more positive over time.