There Stands the Grass There Stands the Grass is a in " " . Detailed walkthrough . To start the quest , you speak to Dr . Hildern at Camp McCarran . Dr . Hildern can be found in his office located inside the Camp McCarran terminal building on the east side of the terminal in the south wing . After speaking to him , he will tell you that Vault 22 has data on its computers that will help him prevent a food shortage . He will give you the location to Vault 22 and ask you to enter and download the experimental data onto your Pip - Boy . Before leaving the base , make sure to speak to Angela Williams so you get the optional objective to find Keely , a researcher who went to the vault before and is now missing . You find out from Dr . Williams that Dr . Hildern has sent other people on his task but none of them have returned . If you speak again to Dr . Hildern before heading to Vault 22 and explore the speech options a little , you can demand that he double the he is paying you for the job ( 40 Speech is required ) . To get this option , you must not have delivered the invoice from the Crimson Caravan , or you will only have the option to say goodbye . The vault is easily found by following the map marker . Quite a few cazador es roam the area near the vault . There are large and colorful plants outside the entrance , and a sign saying , " Stay Out ! The Plants Kill ! " . There are also 4 es hiding in the foliage . The door is permanently open and has a curtain of overgrown plants . Inside the vault are numerous mantises and spore carrier s hidden in plant beds . Spore carriers blend in with the vegetation and will not show up as enemies on your compass until you disturb them . On Level 5 - Pest Control there are s who spit spike projectiles . There are many password - free terminals throughout the vault which you can access to find some of Keely ' s notes and information on what became of the Vault ' s inhabitants . Once inside you have the choice to repair the elevator ( Repair 50 ) or walk the five levels by stairs . Since access to some staircases is blocked , repairing the elevator will make things easier . If you have a Lockpick skill of 75 or higher , you can take the elevator directly to Level 5 - Pest Control and unlock the data bank room . If you haven ’ t repaired the elevator , or you don ’ t have a high enough Lockpick skill , or are also doing Still in the Dark and / or Bleed Me Dry , you will need to go to the Overseer ' s office on Level 4 - Common Areas . Follow the signs through the common areas to the Overseer ' s office where you will find a terminal ( no password needed ) that can be used to unlock the crew quarters , the data banks , and the cave entrance . ( The crew quarters can also be opened with a Lockpick skill of 50 . ) Trying to disengage the cave entrance lock will give you the error message : “ Override engaged at door site . ” You will need to retrieve a keycard , which is located in the crew quarters ( now unlocked via the Overseer ' s computer ) . The key card is in the first room on the left side of the hall as you enter the crew quarters , on a shelf to the right of the entrance . There are three spore carriers waiting inside . With the keycard , climb back up the stairs to Level 3 – Food Production ( the stairs to Level 5 are blocked ) and follow the arrows until you see a door to the caves . The keycard will access the adjacent terminal , where you can disengage the lock . The vault door to Pest Control will be down towards your left in the cave . Follow the arrow to the door . Once you are on Level 5 , you can access the Data Room either by picking the lock or having disengaged it from the Overseer ' s office . At this point you can finish the quest by downloading the data and returning to Hildern , or , either with or without downloading the data , you can look for Keely ( this will give you opportunities for additional XP , caps , and either positive or negative Karma ) . To find Keely you must locate one of two entrances to the cave where she is stranded . The shortest route is through a room with a hard lock ( Lockpick 75 ) . Open this room and there will be a cave entrance . There are plenty of spore plants and mantises in the cave , even a family of baby mantises . Follow the arrows to find Keely . If you don ' t have a high enough lockpick skill , the room adjacent to the room with the hard lock has another cave entrance . The entrance is partly concealed by a computer wall panel that ' s been moved slightly from the wall . This route takes a bit longer . Keely can be found at the far end of the caves . She is on the south end of the cavern sitting alone next to a mantis pod . She will ask you to meet her in her lab on Level 2 - Oxygen Recycling . If you haven ' t repaired the elevator yet , Keely will do so at this point , making your trips up and down a bit easier . When you see Keely on Level 2 , she will tell you about her plan to eliminate the contagious spores . She is pumping flammable gas through the vents on Level 5 . She wants you to find the vents and ignite the gas without killing yourself in the process . Survive the Blast . There are several ways to achieve the intended outcome . First , go to level 5 and locate the " vents " , which you can identify by the fuzzy distortion of the air . The vents can be found in an area at the end of the hallway nearest the Data Room and the room nearby room full of mantises . Next , you need either explosives or an energy weapon with which to ignite the blast . If you don ' t have any , grenades can be obtained from Keely ' s duffle bag in her lab ; the AER14 prototype is accessible through a Very Easy locked door on the fifth level , and a can be found in the same room on the fourth level . Finally , once you ignite the vents , you need to survive the resulting blast . This can be done either by hiding in the reinforced data room with the door closed , by making it to the elevator before the blast reaches you ( see below ) , or by simply surviving the substantial fire damage that the blast causes . The following methods for surviving blast are ranked by your chances of minimizing or escaping damage entirely : When you return to Keely after igniting the gas from the vents , she will tell you that she intends to destroy the research data . If you have the files she ' ll discover they were downloaded . You have multiple options from here : After that , whatever you choose you must return to Dr . Hildern . Behind the scenes . The title of the quest may be a reference to a 1953 country song " There Stands the Glass " , performed by Webb Pierce .