Halloween is being celebrated all over the world, from a spooky squirrel in Thailand to a face-painting prodigy in Scotland
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Our colleagues in Londonderry covered the city's iconic Halloween parade - you can read their coverage here
And if you're heading out, don't forget to check our spine-chilling weather forecast
The second murder has been committed.
This time, by order of Radio 1 listeners, it's Charlie Tee.
Now, 10 players remain.
Tee, who admits she has never watched the show, doesn't seem too surprised.
What's really puzzling those in the Live Lounge is how murders are happening without any contestants leaving the room.
They're wondering if it's happening in plain sight.
Little do they know the wool has been pulled over their eyes.
Nabiha Ahmed
Live reporter
It's time for the second murder, which is up to three new Radio 1 listeners.
As a reminder, and without the players knowing, the traitors in today's game are actually those listening.
Ash says Charlie Hedges needs to be murdered, to frame her co-presenter, Melvin Odoom.
For Steven, it's Charlie Tee who has to go - for the same set up on Melvin.
Amy is looking away from the RMC trio, and suggests voting out Dean McCullough may ruffle some feathers.
They'll now be discussing among themselves to reach a unanimous victim.
Nabiha Ahmed
Live reporter
Matt Edmondson and the RMC triangle have been mentioned at the first round table.
But no name has come up more than Ore Olukoga.
His fellow faithfuls say he was too poker-faced when opening his envelope earlier, despite bumbling with nerves just before.
When the votes are in, it becomes clear that Ore is the first to be banished from the Live Lounge.
He’s received nine out of 12 possible votes - the other three went to Charlie Hedges.
"It's been a pleasure getting to know you... this has been one of the greatest experiences of my life," Ore tells the room.
When he reveals his faithful allegiance, the Live Lounge echoes with disappointment.
Nabiha Ahmed
Live reporter
"By order of the traitors, they have murdered... Rickie Haywood-Williams," Greg James revealed to players after the first murder in today's game.
The ghost of Rickie tells the living in the Live Lounge that they "will know who has done this to me".
"That's all I can say," he says.
Except, they don't.
Charlie Hedges isn't surprised by Rickie's innocence: "I called it. I know the boys too well, come on."
Matt Edmondson, though, "genuinely" thought Rickie was a traitor.
"It's thrown my whole game off," says Matt.
Adam Goldsmith
Reporting from Radio 1
I've just spoken with our first murder victim, Rickie Haywood-Williams, in a Radio 1 corridor.
He says he "doesn't mind" being the first out, but has strong theories about which of his fellow presenters might have picked him for the chop.
The first name on his list? Co-host Charlie Hedges.
He says he was watching Charlie closely when she opened her letter, and, knowing her well, says he "saw her in there".
Rickie had been taken to a room with Matt Edmondson and Danni Diston, and he says Matt immediately expressed his disappointment that he hadn't been chosen as a traitor.
"So he was setting a narrative straight away," Rickie says.
Nabiha Ahmed
Live reporter
Greg's traitors for the first round are going in for the kill - their first victim is presenter Rickie Haywood-Williams.
Now, 12 players remain.
Let the killing spree and empty accusations begin.
Adam Goldsmith
Reporting from Radio 1
The final strains of "The Monster Mash" round off the ten minute takeover and we're back in the Live Lounge.
Surrounding Greg in a circle are 13 nervous presenters - let's see how they react as the first murder is announced.
Nabiha Ahmed
Live reporter
Audience Joe, Michelle and Jordan are the first three traitors in today's game.
Speaking from his turret - his work office - Joe says he'd like to murder Dean first.
For Michelle, it's Danni who has got to go, and it's because of a personal vendetta.
She accuses Danni of taking phone calls on loudspeaker in public - surely worthy of a murder.
But Jordan's preferred victim is Ricky - a big personality whose absence will up the angst in the Live Lounge.
Simon King
Presenter and meteorologist, BBC Weather
While we wait for the first kill, let’s peer into the crystal ball and see what the weather has in store today.
Through today the skies will be cloaked in ominous clouds with haunting showers and the risk of thunderous booms, creeping eastward across the UK.
But as darkness falls and the witching hour approaches, most of those ghostly showers will vanish into the night.
But be aware – lingering rain might still haunt eastern areas of the UK from Gallows Hill, Aberdeenshire through Howl Moor, North Yorkshire and down to Pumpkin Hill, Buckinghamshire.
Elsewhere the clouds will clear revealing a moonlit sky. Perfect conditions for howling werewolves and wandering ghouls.
Hold on to your witches’ hats as the wind will still blow like a restless banshee, especially across western England, Wales and Northern Ireland.
And temperatures won’t send shivers down your spine – hovering around 11 to 15C - so you’ll stay warm enough for a midnight zombie march through the graveyard…if you dare.
Adam Goldsmith
Reporting from Radio 1
Dean's already looking at Nat O'Leary, who he saw pursing her lips - she responds that there's nothing criminal about "looking sexy".
Nat says she was also watching everyone's body language.
Her theory is that Ore's face went from smiley to poker face in a split second.
Dean and Nat continue to trade accusations - we're only 30 minutes in and tempers are already flaring.
Dean rounds off the accusations by saying that James Cusack is "either a big sweaty man" (Alan Carr eat your heart out) or he's a traitor.
Nabiha Ahmed
Live reporter
Greg James is now recruiting his traitors - that is, loyal Radio 1 listeners tuning in from home.
Think you’ve got what it takes to split up Rickie, Melvin and Charlie? Or bump off Nat O'Leary in plain sight?
WhatsApp 03700 100 100 to throw your hat - or cloak - into the ring.
Nabiha Ahmed
Live reporter
Here's the twist.
There are no traitors in the studio - they're all at home, tuning in to the radio. It's up to you, Radio 1 listeners, to decide who gets bumped off.
"No prize money today. Just pride, paranoia and bragging rights," says Greg.
Nabiha Ahmed
Live reporter
You might know him as half of Radio 1's iconic duo, Matt and Mollie.
But today, Matt Edmondson is adamant he’s a faithful - before any traitors have even been picked.
He’s even managed to beat Greg to explaining the rules for today’s game - which state that contestants won’t have access to their phones or Radio 1 for the duration.
Traitor or faithful? Here’s the full rundown of the 13 presenters taking part in today’s game.
Early breakfast presenter - and former I’m a Celebrity contestant - Dean McCullough will be joined at the round table by presenting trio Rickie Haywood-Williams, Melvin Odoom and Charlie Hedges.
Last year’s game master Matt Edmondson joins the ranks this year, alongside weekend presenters Nat O’Leary and Vicky Hawkesworth.
Presenters Lauren Layfield, Ore Olukoga and James Cusack will all, no doubt, be seeking advice from other players - but the real question is, who can they actually trust?
Rock show presenter Alyx Holcombe, drum and bass DJ Charlie Tee, and presenter Danni Diston round off this year’s Halloween players.
Adam Goldsmith
Reporting from Radio 1
Greg James has just announced that Radio 1's presenters will play their own version of The Traitors.
The Live Lounge has been transformed into Ardross Castle’s fabled roundtable room, where the presenters are now gathered.
The 13 nervous presenters will have their blindfolds on as Greg performs his best Claudia Winkelman impression.
Let's see who he taps to become traitors.
Adam Goldsmith
Live reporter, nervously heading to Radio 1
Up on the BBC’s eighth floor, a Halloween tradition is unfolding once again.
Last year, the station’s self-proclaimed "games master" Matt Edmondson hosted Brought to Tears, where presenters faced off in cruel challenges to avoid being eliminated.
Over the past week, Radio 1’s DJs have been receiving an ominous call to arms.
The presenters have been told only that they’re to meet Greg James in the Live Lounge for breakfast at 08:00 this morning.
Now, it’s my turn - I’m making my way up the spiral staircases after getting my own invitation upstairs.
As I join the Radio 1 presenters heading for breakfast with Greg, will it be a trick or a treat?
We’ll have all the updates as this year’s game is announced right here, and you can follow along to the Radio 1 feed by tapping Listen live at the top of the page.
Tell us where you’re heading, what costume you’ll be donning, or share any quirky Halloween traditions you’ve got up your sleeve.
You can get in touch in the following ways:
In some cases a selection of your comments and questions will be published, displaying your name and location as you provide it unless you state otherwise. Your contact details will never be published.
We're looking forward to seeing how you're celebrating Halloween a little later - more details on how to get in touch coming soon.
Until then, here's how some of our friends from the animal kingdom have been preparing for the spooky season.
You can be the judge on their pumpkin carving skills.
Image source, PA MediaNo fear from Hugo the rhino as he checks out Halloween pumpkins at Whipsnade Zoo
Image source, Getty ImagesLioness Luna at Five Sisters Zoo is interested in the pumpkin - or its tongue?
Image source, Getty ImagesMeerkats at Five Sisters Zoo - please be reminded that pumpkins are for carving. not climbing into
Image source, ReutersOh no - what are these Asian elephants at Oregon Zoo doing
Adam Goldsmith
Live reporter
You’re on a bus, or perhaps on the metro. Ordinary trees and houses zip past the window. Around you, people are reading, swiping through their phones, or grabbing a quick nap.
You think it’s just another ordinary day.
But not tonight – the spooky season has arrived.
This 31 October, our coverage of the day’s Halloween events will start eight floors up at BBC New Broadcasting House in London, where Radio 1’s Greg James has been plotting his own festive mischief. We’re expecting his trick-or-treat very soon - at 08:00.
As the day goes on, we’ll be dropping in on Europe’s largest Halloween festival in Londonderry, and darting around the globe for all the shocks and funs.
We’re also keen to hear how you’re marking the occasion, so do tell us when we share our contact details in the next few posts – after all, Halloween may be for the ghostly beings, but our coverage is all for you, our mortal readers.