Anne has some dolphin milk. She is giving it to Tad, the dog, but would prefer to give the dog a sammich.
This is the low-spoiler guide for "Dolphin milk" puzzle in Gibbous - A Cthulhu Adventure. Unlike in normal walkthrough, you get gradual hints on how to solve the puzzle. Click the big button below to see your first hint. If the hint contains a spoiler, you will be warned about it before clicking.