Witches, werewolves and an assortment of ghouls took to the streets of Leicester on bikes.
Up to 200 cyclists joined the taking back the streets campaign of cycling pressure group Critical Mass.
The paranormal peloton met in Orton Square, outside Curve, on Friday, for the annual Monster Mass.
Blue-haired witch Jane Hagger, 59, from Blaby, riding tandem with partner Mike Black, said: "I like to think of myself as a glamorous ghoul. We take part in the Critical Mass rides every month. There is often a theme but Monster Mass is always the best."
Mike, 51, dressed as a ghoul, said: "It's always a lot of fun and gets our message out there."
Policing the ghostly gathering was Matthew Dunn, 36, from Leicester Forest East, dressed as a ghostbuster.
"You've got cyclists of all ages dressing up and having fun," he said. "It's a big deal, especially for the children.
"I think the youngest we have here today is about four.
"There are some great costumes. I think my favourite is the Resident Evil nurse girl."
Claire Spilane, 28, from Leicester's West End, who was wearing the outfit – splattered in the blood of her latest victim – said: "I come to as many rides as I can but this is the one is the highlight of the year.
"I love dressing up – and cycling."
The ride ended at The Font pub, in Gateway Street, where cyclists dismounted.
To see how Leicester residents have transformed their homes into Hallowe'en haunted houses, see Page 11.
