|Release date||30 April 2015 (Update)|
|Would you buy a used magic carpet from this man?|
Big Mo is a traveling sales and businessman from Zeah who visited the mainland for a period of 30 days. He was located in a random location each day, and was only available during May 2015. Once per day during May 2015, he offered players a clue scroll for 50 coins. The tier of clue scroll was random each day but the chance of getting a selected clue increased with each clue purchased.
Each day at midnight (00:00) GMT, Big Mo moved to a new location. His location was hinted by the official Old School RuneScape Twitter feed.
A total of 104,405 players spoke to Mo, 88,527 of whom bought 1 clue. 46,968 players bought 4 or more clues and only a total of 1,700 players bought a clue every single day during the event.
|31 May||Something, something, something... Dark side. Something, something, something... Cult.||Near the Clock Tower, south-west of East Ardougne.|
|30 May||Amazeing.||At the north-western section of the Tree Gnome Village maze.|
(Enter from the south-eastern corner. Easy access from the Nightmare Zone minigame teleport.)
|29 May||N/A||At the Chaos altar, south-east of Varrock, directly south of Aubury.|
|28 May||N/A||On the top floor of the Wizards' Tower, next to Wizard Mizgog.|
|27 May||N/A||At Evil Dave's basement, west of Edgeville bank.|
|26 May||They can't be assisting in much engineering if they just stand around all day holding boxes.||Next to the entrance of the Dwarven mines by the Ice Mountain, north of Falador.|
|25 May||A bowl of stew for only 20 coins? Bargain.||Inside Seers' Village pub, west of the bank.|
|24 May||N/A||Inside Galahad's house, east of the Coal Trucks, west of McGrubor's Wood.|
|23 May||N/A||Outside the Wizards' Guild in Yanille.|
|22 May||This place is horrid! So dark, dingy... And it stinks of fish, too.||Inside the Goblin Cave, near the Fishing Guild.|
|21 May||There's nothing like getting out into nature when on holiday. Unless that nature explodes. That is the bad sort of nature.||Outside the Red chinchompa hunting ground, south-west of Feldip Hills. (Fairy ring AKS)|
|20 May||It can't be comfortable in there... He is taller than the pillars! Just an extra incentive for Big Mo to avoid legal troubles.||Outside the Seers' Village Courthouse.|
|19 May||Maybe if she would stop nagging he would stop wagging his chin.||At the Observatory Dungeon, north of Castle Wars.|
|18 May||Making reading fun. And expensive.||1st floor[ of the ]Lighthouse, north of the Barbarian Outpost (Horror from the Deep required; he will not appear in the lighthouse during the quest)|
|17 May||N/A||At the picnic area outside the Shadow Dungeon, north-west of the Fishing Guild|
|16 May||All of this lava without a single warning sign? You'd better pray no one falls in.||At the chaos altar near Red salamanders, north of Castle Wars, west of the Battlefield|
|15 May||King Healthorg doesn't look quite so great stood next to Big Mo.||Outside the gates of Tree Gnome Stronghold|
|14 May||Perhaps Big Mo was in need of a newcomer map?||At the docks of Catherby|
|13 May||There is gnome way they are winning.||South-east section of the Khazard Battlefield, west of the Ardougne Monastery|
|12 May||Don't just do something! Stand there!||Next to Captain Lawgof at the Coal Trucks, north-west of the Fishing Guild (Ardougne)|
|11 May||For a town with so much crime you would think that the docks would have more security.||At the docks, near Captain Barnaby, south of East Ardougne|
|10 May||You need to have a defence level of 20 to equip this gate.||Outside the entrance of the Legends' Guild north-east of East Ardougne (Fairy Ring BLR)|
|9 May||Looks like Big Mo is interested in a stabbie chucker. It is not for freeness, though.||At Rantz, east of the Feldip Hills (Fairy Ring AKS)|
|8 May||A pick-lock option on a coffin? How very dark.||At Jiggig entrance, south of Castle Wars (Zogre Flesh Eaters not required)|
|7 May||This is definitely not the place for a man of Big Mo's size. Maybe he could help fend off the wolves, though.||At the bar inside the passage under White Wolf Mountain (Fishing Contest required)|
|6 May||It seems Big Mo is trying to get his hands on a rare sort of egg. He'll have a job getting one out of that place.||Inside the Barbarian Assault minigame building at the Barbarian Outpost|
|5 May||Just north of Ash, lad!||Inside the Rellekka Longhall Bar in the centre of Rellekka|
|4 May||Do people from these parts always take their platelegs off for a brew?||Inside the Fight Arena Bar in the south-western corner of the Fight Arena|
|3 May||Travel is tiring. If only benches were made to fit a man of Mo's size.||North of Jatix's Herblore Shop in Taverley|
|2 May||Rajj has kept him waiting for quite some time now.||Top floor in Al Kharid Palace|
|1 May||N/A||Varrock Square|
- Big Mo mentions he is from a distant land beyond Karamja. This was later revealed to be Zeah.
- Big Mo has a younger brother, Little Mo.