The paintings of white lilies painted by a popular noble painter get damaged at Bath, a famous hot spring in England.  Feeling that he's seen the painting before, William goes to Bath, where he is reunited with Sherlock, who happened to be there to investigate the case.
This pigment includes lead
as one of its components.
Einer der Bestandteile der Farben ist Blei.
C’est un pigment
qui contient du plomb.
Esta tinta contém chumbo
entre seus componentes.