On 19 Sep, 23:38, harry wrote:
We have grass snakes!http://www.flickr.com/photos/ara-chloroptera/?saved=1
Escaped from *heated propagator and captured making a break for it
across our living room floor!
I will release them tomorrow when it's warmed up a bit.

Update .
All the eggs have hatched. We had twenty one in total.
Surprisingly there were no failed to hatch ones.