I read about this book in Martin Edwards' book on classic crime, and thought it sounded pretty awesome, so I tracked down a copy. In the UK they're stupidly expensive, but AbeBooks solved that problem.

The book is very much an Oxford mystery: the first few chapters are just completely redolent of nostalgia and love for Oxford. It's very similar in feel to Gaudy Night, and I'd be surprised if Dermot Morrah wasn't an alumnus. (There's a touch of romance here, but only the very lightest touch: no placet ne, magistra? here, and no chance of it either. It's not anti-women but it's not particularly positive about them either, though at least one character's views on women in education are rather shown up.)

The mystery is entertaining enough, and I cottoned on to significant parts of it -- not all, but most. Don't be fooled by the title, in any case: the Egyptian stuff is mere trappings, though the mummy case is important in its way. Oxford is the real star. 

I found it enjoyable, but a little slow and convoluted.