ISBN-13: 9780099542193 / Angielski / Miękka / 2010 / 528 str.
The destroyer Svea emerged from the Stockholm archipelago bearing south-south-east. On board was Lars Tobiasson-Svartman, a naval engineer charged with making depth soundings to find a navigable channel for the Swedish navy. Svartman alights on a barren skerry and is surprised to discover there a young woman, Sara Fredrika.