The last time Morgan returned to C City to see Martin, he also rewarded him with a billion. The money Martin has wasn't used much yet. If a dire situation would happen in the auction, or if it would be necessary, Martin can also use the money out.
All these added up to a total of 2.5 billion dollars. With so much money stashed in his bank account, Martin is confident that at this auction, he can use the money to kill the Mars Group.
At the Blue Sky Hotel.
When the clock strikes at nine o'clock in the evening, all kinds of luxury cars entered the Blue Sky Hotel....