[Jellby]

Like this:

<p>The stake no longer ... before he left.</p>

<p class="spaced">LORD JOHN LINGERED for a moment ... ensure sleep.</p>

with:

p { margin: 0; text-indent: 1em; }
p.spaced { margin-top: 2em; text-indent: 0; }

or:

<p>The stake no longer ... before he left.</p>

<div class="scenebreak"/>

<p>LORD JOHN LINGERED for a moment ... ensure sleep.</p>

with:

p { margin: 0; text-indent: 1em; }
div.scenebreak { height: 0; margin-top: 2em; page-break-after: avoid; }
div.scenebreak + p { text-indent: 0; }