Unlock The Secret: One Move To A Perfect Square

Taking a positive integer and squaring it (multiplying it by itself) equals a perfect square. 3 x 3 = 9 thus: 9 is a perfect square. Taking the square root (principal square root) of that. Don't know how to unlock the secret rooms of levels 1 and 2 and you speak english?

You might be here wondering the following: Near the safe are several statues and notes that trigger the mystery, secret of secrets. You'll need to use the nicolettis letter along with the planetary chart to solve this. You apparently only need the reports and also beat aqua on critical once to unlock the final episode. Once you unlock the final episode you complete that and it will unlock the secret.