The pixies have finally given me back my things. Having chased off the human, the rest joined the ones who seized me.
They carried me off to their great hall deep under the mound. They proved themselves friendly to me. Mainly because they believe I had taken their side against the human. Some of the younger ones as a prank ran off with my things when I had briefly put them aside.
It took a while for the elders to track them all down and restore them to me.
In the meantime the leader Nailbiter showed me every courtesy. They even offered their help in capturing Rumbletwist.
I must weigh my next steps carefully.