Accuracy Second Round Interview (London offices)

Hi everybody, 

I have been invited to attend the second round interview of Accuracy's hiring process at their London offices. I am applying for a Financial Analyst Intern position. They told me that the interview would consist in a 2 hours case study based on one of their projects (few documents to review and 2 questions to answer and discuss with one/two of their consultants). Does anybody have any tips or have attended this process previously? 

Thanks a lot!