Greenwich Theatre-goers are booking up to be on stage at a special interactive installation show for two people called The Lost Room over two days next month (August 3-4).

The show is the idea of Tristan Shorr and Rachel Champion, who make up the Art of Disappearing company and won the commission set up by Greenwich Theatre and Greenwich Dance last October.

Pairs will go into The Lost Room wearing wireless headphones to immerse themselves in an audio environment with music, a narrator and a series of tasks/challenges.

"The Lost Room is about unlocking people's imagination," said 39-year-old Rachel.

"There could be invitations to create images, to crack codes, to move through the room in different ways but always together. The aim is for people to go away with new, shared memories.

"The age range is 10-plus but it's not just for young people. We've had people over 60 at tests and they've been great and really got into it, allowing them to be like children again."

Tristan, 37, composed the music for the show. "At the beginning of the project we could only imagine how various elements might work," he said, "how people might respond to certain activities or how they would be guided by an audio track instead of by a live actor.

"We had test sessions in the bar at Greenwich Theatre and the feedback was brilliant in helping us to perfect the experience. Being supported by Greenwich Dance and Greenwich Theatre has given us the chance to plan a large-scale touring production. It's an incredibly exciting prospect for us and not something we could have done by ourselves.

"Two people will go into the room at booked times," said Tristan. "If pairs don't come together they know they can go in with a stranger, which can work really well.

"We're asking people to get really involved so they have to be quite creative and open-minded when they enter the space. The whole thing lasts for 45 minutes but the main chunk of it in The Lost Room is for 20 minutes.

"The various set tasks will combine to help the two people create their own characters and their own story in a way that will stay with them when they leave, a bit like leaving a film when you're a kid and you feel you are still in it."

James Haddrell, Greenwich Theatre's artistic and executive director, said: "It started last summer when Kat Bridge, artistic director of Greenwich Dance, asked if we would like to work with them on offering a small commission to a dance of theatre artist wanting to try out a new project.

"We are passionate about unearthing new and exciting performance and finding ways to bring it to the stage, so we were immediately keen. After meeting a range of exciting artists, we finally selected the proposal by Tristan and Rachel Champion and tested some ideas at the Greenwich Dance Family Cabaret last autumn."

*The Lost Room will be at Greenwich Dance, Borough Hall, Royal Hill, on July 24 and 25, then at Greenwich Theatre on August 3 and 4. Contact the Greenwich Theatre box office on 020 8858 7755 or visit Greenwich Dance at www.greenwichdance.org.uk.

Find out more at www.artofdisappearing.com