A Scent is Key is a hidden chest on the Dreadnaught. The chest is located in the Mausoleum of the Dreadnaught. To obtain the chest, players must pick up a scent at a specific spot then reach the chest within 60 seconds after picking up the scent. Players must go through various invisible platforms to reach the chest. Players are awarded with Calcified Fragment XXXIV for obtaining this chest.
Start off in the hidden room where a chest that says "Requires Key of Maggots. Wait about 30 seconds to receive the scent. Your screen will turn green. You leave that room and immediately and go left to the big open pit area. You go to the right side of the platform and use your Ghost to see the invisible platforms. When you reach the invisible platforms you can use your Ghost to make them visible. Take the left platforms.
Max your agility! Use a fireteam to show where the bridges are can make this a lot easier.
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