He Came... And Went is a side quest in the Fallout: New Vegas add-on , Old World Blues .
Quick walkthrough
Talk to Dr. Dala about the "other visitor" at the Big MT .
Find out the questions the other courier asked Dr. Klein .
Detailed walkthrough
After visiting The Think Tank and speaking with Dr. Klein, he will tell the Courier to speak with the other doctors. Through dialog options, Dr. Dala will reveal that another courier traveled to Big MT , in search of another courier, but hadn't found them yet. She can't recall the questions the other courier asked, but hints that Dr. Klein might know.
If the player speaks to Klein, he will tell the Courier that they asked a dangerous, possibly too dangerous, question. Klein states that he erased his memory of the event, but Dala hinted that some information might be written down somewhere.
Evidence of two of the visitors can be found; Father Elijah 's notes at the Little Yangtze camp and Elijah's journal pageat theSignal Hills transmitter . Additionally, three holotapes of conversations between the original Courier 6, Ulysses , and Christine Royce can be found in Ulysses' Point , and the Y-17 medical facility .
Journal entries
Stage Status Description 10 Ask Dr. Klein about the conversation he had with the last visitor to the Big Empty.
Act 1 Ain't That a Kick in the Head · Back in the Saddle · By a Campfire on the Trail · They Went That-a-Way · Ring-a-Ding-Ding! Act 2 Wild Card (Wild Card: Ace in the Hole , Change in Management , You and What Army? , Side Bets , Finishing Touches ) · The House Always Wins (I , II , III , IV , V , VI , VII , VIII ) · Render Unto Caesar · Et Tumor, Brute? · Things That Go Boom · Kings' Gambit · For the Republic, Part 2 · You'll Know It When It Happens /Arizona Killer Act 3 No Gods, No Masters · All or Nothing · Veni, Vidi, Vici · Eureka!
Other Come Fly With Me · Crazy, Crazy, Crazy · Ghost Town Gunfight · Guess Who I Saw Today · Left My Heart · My Kind of Town · The Legend of the Star and A Valuable Lesson · Unfriendly Persuasion · Wheel of Fortune Companion quests ED-E My Love · For Auld Lang Syne · Heartache by the Number · I Could Make You Care · I Forgot to Remember to Forget · Nothin' But a Hound Dog · One for My Baby Unmarked quests A Bit of Slap and Tickle · A Final Plan for Esteban · Access Powers · All Fired Up! · An Ear to the Ground · Andy and Charlie · Arachnophobia · Arizona Scavenger · Barton the Fink · Bear Necessities · Big Winner (Atomic Wrangler , The Gomorrah , The Tops , Ultra-Luxe , Vikki & Vance ) · Bounty Killer (I , II ) · Brotherhood Bond (I , II ) · Caching in at the Cove · Cajoling a Cudgel · Claws Mended · Claws Out · Dealing with Contreras · Defacing the Humble Stone · Democracy Inaction · Don't Poke at the Bear! · Eddie's Emissary · Exhumin' Nature · Fight Night · Flogging a Dead Corpse · Friend of the Followers · Gland for Some Home Cooking · Harder, Better, Faster, Stronger · Hat's Entertainment · Help for Halford · Hidden Valley computer virus · Highway to the Danger Zone (I , II ) · Honorary Rocketeer · I Love Bananas · Iron and Stealing · Keith's Caravan Charade · Laurifer Gladiator · Lenk's Bad Debts · Lily and Leo · Long-Term Care · Malleable Mini Boomer Minds · Maud's Muggers · Meeting an Equal · Missing a Few Missiles · Most Wanted · Not Worth a Hill of Corn and Beans · Old School Ghoul · A Pair of Dead Desperados (I , II ) · Papers, Please · Pistol Packing · Playing on the Old Joana · Powder to the People · Power to the People · Razzle Dazzle! · Reach for the Sky, Mister! · Rest and Resupply · Ringo's Caravan Rules · Rotface's Loose Lips · Saving (or Savaging) Sergeant Teddy · The Screams of Brahmin · Silus Treatment · Short-Term Treatment · Smooth-Talking Criminal · The Star Showdown · Strategic Nuclear Moose · Straus Calls · Strip Search · Suits You, Sarah · Tags of Our Fallen · A Team of Moronic Mercenaries · Thought for the Day · Tourist Traipse · Trudy's Radio Repair · A Trusted Aide · Useless Baubles or Fancy Trinkets? · We Must Stop Beating Like This · We Must Stop Meeting Like This · Wind-Brahmin Wrangler · You Gotta Break Out a Few Eggs · You Make Me Feel Like a Woman