I know this is kinda funny but my hardset boss in marelybone was NAILS! And i'm a master lvl 45 it took me at least 1 FULL HOUR to defeat him!
Who was the hardest boss you fought :-D post a comment if you like.
hunter redblood lvl 45
My hardest boss was probably Meowiarty because he's (I think) the highest level boss in MB and the way getting to him was hard. It took me probably an hour and a half just to get to Meowiarty and it took at least half an hour to defeat him and I was level 32
lol, i would have to say the people in the Spiral Archives. Technicly, it is to get to celestia, but it IS in marlybone. It is my least favorite tower, as the bosses cheat. I am not making that up, a CPU in the tower even SAYS they do. The final four bosses can put -90% shields on themselves, and take away traps, and use rebirth when you heal.
Freddy Nine lives only for Life and Death though he has 1,000 health and no minion but he is so ANNOYING you have to fight him nine times! May take days if you dont feel like fighting same boss 9 TIMES!
The hardest boss in MarleyBone eh? Isn't there a place that's level 60 only called the Warehouse or something like that with cheating bosses in MarleyBone somewhere? I'd say the hardest boss so far for me was Mc'Tavish guys. They had a few thousand health each! You beat them for a Balance school quest to get Judgement. I couldn't beat them, so I just walked around and...Bingo! I got what I needed.