How did they die exaclty? They're really hardy as long as they don't dry out, get too hot or are kept in a bad cage. There's one full length article and an addendum a few years later. All the old issues are available at present. I imagine I ought to be able to guess.I'll link my friend (you can possibly guess who she is!) to this post. You use a substrate too shallow for burrowing? No, they didn't mismolt. Is there an article anywhere in Invertebrate Magazine, and if so, is it still available? Thanx