It's over

"As predicted, he left no sign behind." Xavier's frustration was evident as he was repeatedly nudging the leg of the coffee table with the tip of his shoes. 

"I know what we are doing wrong." Natalia finally spoke after a while of silence and pondering. 

"And what is it? Spill it already." He gazed at her expectantly. 

"We are doing everything wrong." She looked up from the screen and at his perplexed face. 

"What does that even mean?"