Document Classes ⇒ \part Followed by Blank Page with extbook

[AleCes]

Hello everybody,

When I use the extbook document class, \part is routinely followed by a pesky blank page , which doesn't occur if the normal book class is used, but since I need 14pt font size, I'm in a quandary...

Code: Select all

\documentclass[a5paper, openany, 14pt]{extbook}
\usepackage{extsizes}
\usepackage[top=1.7cm,headsep=10pt,outer=1.9cm,inner=1.9cm,bottom=1.7cm]{geometry}
\begin{document}

\part{}

\chapter{}

\chapter{}

\end{document}

Regards