All around her on the riverbank other serpents laboured at the same task, with varying degrees of success. Between and amongst them, humans toiled. Some carried buckets of water from the river. Others mined chunks of silvery clay from a nearby bank and loaded it into barrows. Youngsters trundled the barrows to a hastily constructed log enclosure. Water and clay were dumped into the immense trough; other workers used shovels and paddles to break up the lumps of clay and render the water and clay into a loose porridge. It was this slurry that Sisarqua had consumed as the major ingredients for manufacturing her case. The lesser ingredients were just as essential. Her body added the toxins that would plunge her into a sleep half a breath above death. Her saliva contributed her memories to the keeping of her case. Not just her own memories of her time as a serpent, but all the memories of those of her bloodline spooled around her as she wove her case.

Missing were the memories she should have received from watchful dragons tending the serpents as they made their cases. She had enough memories to recall that there should have been at least a score of dragons present, encouraging them, chewing the memory sand and clay and contributing their own regurgitated saliva and history to the process. But there weren’t, and she was too tired to wonder how that lack might affect her.

A great weariness washed over her as she reached the neck of her case. It had to be constructed in a way that would eventually allow her to draw her head in and then seal it behind her. It came to her, slowly, that in previous generations, the dragons that had tended the serpents had sometimes helped them seal their cases. But Sisarqua knew better than to hope for that help. Only one hundred and twenty-nine serpents had massed at the mouth of the Serpent River to begin the desperate up-river migration to the traditional cocooning grounds. Maulkin, their leader, had been gravely concerned that so few of them were female: less than a third. In any cocooning year, there should have been hundreds of serpents, and at least as many females as males. They had waited so long in the sea, and then come so far in the hope of restoring their species. It was hard to hear that they might be too few and too late.