Get a large pot, fill with water 1/2 half way, add first four ingredients. Reserve one lemon, squeeze other lemons in the pot and toss in. Bring to a rolling boil, add potatoes, cook for 10 minutes, add corn, cook for 5 minutes, add sausage, cook for 5 minutes, add onions, eggs and king crab legs, cook for 8 minutes, add shrimp and mussel meat, cook for 8 minutes, drain, reserving liquid in a bowl (you can dip your seafood as you eat so it'll be nice and warm) place your masterpiece in a large serving tray, remove eggs, peel, poke with fork all over egg, let them soak in reserved liquid. Squeeze reserved lemon over seafood, enjoy! (I like to let the eggs soak for at least 10 minutes, they get that awesome flavor to them)