YOU suggest, in a gentle way of course, that there may be serious question marks over Amy Hoff's sanity.

After all, would anyone in their right mind even think about attempting to turn cult book Good Omens into a theatre play?

The novel, by Neil Gaiman and Terry Pratchett, is a comedy about the birth of the son of Satan and the coming of the end of the world.

So far, so straightforward, you may think. But when you add a couple of avenging angels, a subplot featuring the Four Horsemen of the Apocalypse, some assorted Hellhounds – and a flying truck – it gets a little complicated.

Then you have a cast of 19 to move around on the Cottiers Theatre stage. Tricky?

"Just a little bit," says US-born producer/writer Amy.

"When I got down to working on the adaptation I realised I had to take some of things out - we have had to get rid of the Hellhounds for example, as they're hard to find."

Couldn't you just use a poodle - and say it suffered from severe mood swings?

"Not really," she says, deadpan.

"There's a scene featuring the Bikers of the Apocaplyse where Hell's Angels fly over a truck.

"That, and quite a few other sections of the book, had to go."

Amy, who now lives in Glasgow's West End, isn't crazy at all to be attempting to re-invent the epic novel for the stage.

Her band of theatre brothers – and sisters – Cult Classic Theatre, founded in 2010, has already had considerable success with their demanding adaptations of Man In The Iron Mask and Dr Horrible's Sing-Along Blog.

"I did auditions for Dr Horrible and it snowballed," she explains. "There wasn't an outlet for the sort of things we do. There's an untapped audience. And we were all fans."

Amy adds: "The company has been around for a couple of years and we've been working on Good Omens for over a year, getting it ready. "It's been a long rehearsal because it's so complex.

"But the biggest challenge was in getting the rights to stage it.

"Thankfully, they were granted and we couldn't quite believe it."

The comedy in the Good Omens storyline stands out like the Anti-Christ at a church fundraiser.

We discover that Warlock, the child everyone thinks is the Anti-Christ is, in fact, a perfectly normal 11-year-old boy.

Due to mishandling of several infants in the hospital, the real Anti-Christ is Adam Young, a charismatic and slightly otherworldly 11-year-old who, despite being the harbinger of the Apocalypse, has lived a perfectly normal life as the son of typical English parents.

As Adam blissfully and naively uses his powers, creating around him the world of Just William, the race is on to find him.

Amy, who specialises in Scottish History grew up in Minnesota and came to Scotland to finish her PHD in Scottish Folklore in Aberdeen.

In recent years she has gone on to teach Scottish Identity at Glasgow University.

"Along the way I did a little bit of acting, then became a professional dancer. And then the idea of working in theatre sounded like fun.

"I've always done a lot of things at once. I want to continue with that, to write, teach and direct, and dance.

Does she miss home? "I miss the wild west pioneering spirt, the heartyness of it, the physical strength you need to survive - and I miss the cold. It's colder there than anywhere in Scotland."

But she goes on: "I love the talent that Glasgow holds. In working on Good Omens the cast hang out together as we're all friends."

Of the future, Amy says: "There are about seven ideas we'll consider. We have the spirit to make things happen on stage."

And the loss of a Hellhound or two will make no difference.

n Good Omens, Cottiers Theatre, March 20-30. See website for details.