Coriolis

The eighteenth book by V. M. Straka, published in 1944.

The book came with an "Eötvös Wheel", a sliding ruler used to calculate coordinates.

Victor Martin Summersby's Forty Fathoms, published in the same year, share many significant plot points, scenes, settings, and themes. It is not clear if there was some influence or plagiarization. It is one of the arguments for Summersby being Straka.

Content
It has scifi/fantasy elements and contains his most radical experimentations with language. It is one of his works (alongside Triptych of Mirrors and Ship of Theseus) that are especially deeply informed by philosophical inquiries into the nature of identity. It is one more of his books where the question of identity is essential and is all about trying to assemble a cohesive vision of self.

As in other of Straka's works, and most notably here, charactes are affected by spatial disorientation. One character is afflicted by the fictitious Eötvös Syndrome which causes disorientation, intensifying as he approches the equator.

P. 464 contains the phrase "was and is unwavering, from first to last". Another point contains the phrase "A person is no more and no less than the story of his passions and deeds".

A fugue scene describes a woman similar to Sola in Ship of Theseus.

There is a reference to a childhood memory of gingerbread.

There is an elusive maze scene.

On Book II, Ch.29 Captain Erasmus discovers the Black Mountain, the axis mundi.

Also on Book II there is a dialogue between Viktor and Sofia regarding acquiescence to the limits an individual imposes upon himself.

On Book III Sunderman visits the Island of the Threefolds where everyone has three iterations of themselves.

On Book VI there appears a Sudden City, perhaps a reference of the Sunken City of the The Winged Shoes of Emydio Alves.