Pulling the casing out sounds simple. But with coring, be it by hand, with a road drill, or with a rig, the pulling out is always harder than the hammering in. So they pulled. And pulled. And pulled. Nothing happened.
We started worrying again, but as had been the case a few times before this week, it all worked out. And that meant we could go home. Tasha was keen to do so, for family reasons. She took the cores with her, as York has hardly any sample storage space. Soon I'll come up to Durham so we can open them, and see for the first time what we've actually brought up!