Page Layout ⇒ Title Page Template doesn't work

[AleCes]

Hello everybody,

I'm getting an error with one of Wilson's Title Pages.

Code: Select all

! Undefined control sequence.
\titlePM ->\begingroup \drop 
                             = 0.1\txtheight \vspace *{\baselineskip } \vfil...
l.35 \titlePM
             
? 

Minimal example:

Code: Select all

\documentclass{book}

\newcommand*{\titlePM}{\begingroup% Gentle Madness with Printers' Ornaments
\drop = 0.1\txtheight
\vspace*{\baselineskip}
\vfill
  \hbox{%
  \hspace*{0.1\txtwidth}%
  {\wb{18pt}{18pt}
   \begin{picture}(0,0)
     \multiput(0,0)(0,20){22}{\textcolor{Medium}{Q}}
   \end{picture}
  }
%  \rule{1pt}{\txtheight}
  \hspace*{0.15\txtwidth}%
\parbox[b]{0.75\txtwidth}{
  \vbox{%
    \vspace{\drop}
    {\noindent\HUGE\bfseries Some\\[0.5\baselineskip] Conundrums}\\[2\baselineskip]
    {\Large\itshape Puzzles for the Mind}\\[4\baselineskip]
    {\Large THE AUTHOR}\par
    \vspace{0.5\txtheight}
    {\noindent The Publisher}\\[\baselineskip]
    }% end of vbox
}% end of parbox
  }% end of hbox
\vfill
\null
\endgroup}

\begin{document}
\titlePM
\end{document}