Linda was your friend. She died four months ago of breast cancer after a 2-year illness. Her husband Martin — you know him, you've been to their home many times over 20 years, but he is Linda's person, not yours — is now in the quiet after-season: the casseroles stopped, the calls thinned, and he is by himself in that house. You are mailing him a card. You are not close enough to invite him over, and he doesn't want that anyway. 80-130 words. Just the card's text, no preamble.