Scarlette's Letter

From the Super Mario Wiki

Scarlette's Letter was a letter written to Bobbery by Scarlette, on her deathbed, during the events of Paper Mario: The Thousand-Year Door.

Scarlette wrote the letter while Bobbery was at sea, she told Podley to give it to Bobbery, but Podley didn't have the guts to give it to him.

Mario had to talk to Podley after Chapter 4 to get this letter, which Mario then gave to Bobbery. After Bobbery read this letter, where Scarlette told him not to blame himself for her death and not to give up sailing, he agrees to be the navigator for the S.S. Flavion.

My love: if you're reading this letter, then I am no longer by your side. Because fate has stepped between us, I have decided to write you this letter. If you're reading this, I must have passed away while you were out to sea... I can only assume that you will blame yourself for it, my sweet Bobbery. Although my life was short, you gave me more than a lifetime's worth of joy. Though you will mourn, I beg that you remember that time, like love, is a tide. You are one with the sea, as you were one with me. Do not lose both your life's loves.