What to look for?

They seem to be wrapping up for the night, all the flood lights at the dig are going out and there's been a stream of people coming and going.

I like the idea about the fire alarm, M. Fingers crossed the doors will unlock though I don't know how long I'll have before they show up. Let's hope it is enough to find something. I don't expect I will be able to hang around afterwards, security will be a lot tighter if they realises someone’s been snooping about.

I'll give them time to have a few drinks in the bar then go for it.