Aquanauts : expedition to the Siljan Ring - Olof Hedengren - Bog

Completely unexpected, seven trunks and a couple of wooden bins arrive to the Ontological Museum in Stockholm. The anonymous donation contains notes and diaries, photographic negatives on glass plates, a peculiar cranium and dried in traces of scent.
The diaries turn out to be written by Beata Gardelius, palaeontologist at the Swedish Museum of Natural History. The photographs and the drawings are done by Inga-Lisa Blomgren, assistant at the Institute of Geology in Uppsala. The research material is nothing than remarkable.
In September 1897, Beata Gardelius and Inga-Lisa Blomgren disappear during the expedition to the Siljan Ring. The faith of the two women has until now remained unknown.