Volume 4 of Vier Freunde concludes with chapter 48 which describes
Joachim's and Jonathan's return from the Island. That volume ends,
once they reach the mainland. The ensuing chapters, beginning with 
#49 , describe the evolution of the relationships between the three
occupants of the Doehringhaus on Linnaean Street. The relationship
between Joachim and Jonathan in the shadow - or in the radiance -
depending on ones interpretation of the awesome intellectual presence
of Maximilian Katenus.Their emotions are dominated by his somber fate;
their thoughts are efforts, more or less successful, to come to terms
with Katenus' monumental ideas. For the time being, at least, the 
two freinds' visit to the Island appears to have stabilized Katenus'
precarious social and legal situation there, but his future seems quite
precarious, and at this juncture I cannot anticipate his further role
in the novel, but he will not disappear.

Unless one takes Katenus' ideas and their consequences in the lives
of Joachim and Jonathan seriously, Charlotte now becomes at least
temporarily the central character of the novel. She explicitly rejects
the intellectuality of Katenus; she mocks Jonathan and Joachim for
their discussions; she is determined to assert her competence and
independence by pursuing a career which will at one and the same
time launch her on a lucrative career and enhance her authority
he has discovered that the renovated factory building a cooking
school in the northern outskirts of the city houses a cooking
school. She asks Joachim for a financial contribution, pointing
out that she has been contributing her services to the household
gratis. Joachim is sympathetic and amenable and introduces her
to the custom of maintaining a deposit of cash in the pages of
volume 2 of Schopenhauers Welt als Wille und Vorstellung, which
on which any member of the household is free to draw, and to which
any member of the family is free to contribute, an institution
attributed to Jacob Doehring, whose inspirations in turn derived
from Hofmannsthal's libretto for Richard Strass' Arabella,
specifically from a conversation in Act 1, between the impoverished
Count Waldner andxs the wealthy Mandryka, who has just sold one of
his forests and offers Waldner a wallet stuffed with 1000 Gulden 
Notes and says to him, Teschek, help yourself, "Teschek bedien dich",
a phrase which Doehring recognized as the epitome of generosity.
The cache of 20 dollar bills in Schopenhauer volume 2, was Doehring's
monument to Hofmannsthal's ideal.

Such a spirit is alien to Charlottes; she refuses to accept the money;
she will have nothing to do with what she denounces as obscenity,
and as is her custom, leaves the house in anger; but then, also as
is her custom, she changes her mind, returns, takes from the book,
without telling Joachim, not to speak of Jonathan, the four hundred
dollars and sets out once for the cooking school that she has selected
as her alma mater.