“Could you show me exactly where you found it?” she asked.

“Do I have to? It’s my birthday party,” he said.

“Yes,” his mother said. “Show us.”

She snatched up her baby from the floor and pushed her son out of the room in the direction of the front door. The man followed close behind. The children fell silent when their host was grounded and they watched his mother push Toti out of the house with a stern look on her face, holding his little sister on her arm. They looked at each other, then set off after them.

This was in the new estate by the road up to Lake Reynisvatn. The Millennium Quarter. It was built on the slopes of Grafarholt hill, on top of which the monstrous brown-painted geothermal water tanks towered like a citadel over the suburb. Roads had been cleared up the slope on either side of the tanks and a succession of houses was being built along them, the occasional one already sporting a garden, freshly laid turf and saplings that would eventually grow and provide shade for their owners.

The throng set off in hot pursuit behind Toti along the uppermost street next to the tanks. Newly built town houses stretched out into the grassland, while in the distance to the north and east the old summer chalets owned by people from Reykjavik took over. As in all new estates, the children played in the half-built houses, climbed up the scaffolding, hid in the shadows of solitary walls, or slid down into recently dug foundations to splash in the water that collected there.

Toti led the stranger, his mother and the whole flock down into one such foundation and pointed out where he had found the strange white stone that was so light and smooth that he put it in his pocket and decided to keep it. The boy remembered the precise location, jumped down into the foundation ahead of them and went straight over to where it had lain in the dry earth. His mother ordered him to keep away, and with the young man’s help she clambered down into the foundation. Toti took the bone from her and placed it in the soil.