Ok, im with peer the seer and i need the four letter code. The guide says something about a letter in each sentance in the ridde. Please tell me what you think the four letter word is. thx. Riddle- My first is in water, and also in tea. My second is in fish, but not in the sea. My third in mountains, but not underground. My last is in strike, but not in pound. My whole crushs mountains, drains rivers, and destroys civilisations. What am I?