Chapter 4, Sartorius Summary

Kelvin goes to the station's library and discovers that the books cited on the note from Gibarian were checked out to Gibarian. He is afraid to meet the mysterious woman, but he goes back to Gibarian's room and finds it empty. He searches for the books and finds one of them in a pile on the floor.

The name André Berton is underlined in the index. Berton was a pilot on the first manned expedition to Solaris. On the expedition, two scientists went missing, and search parties spread out to find them. Their vessel was found with only one scientist on board. They had experienced a problem with their oxygen, and the other scientist, Fechner, fell into the ocean. His body was not recovered. Berton was out searching for Fechner's body, and he was late returning. When he finally came in...