Zheng state during the Warring States period / surname Zheng / abbr. for 鄭州|郑州[Zheng4 zhou1]
郑
=
关
+
阝
:
James II of England (zh) and Zheng He (郑) agreed to build a pipeline (郑) connecting their nations, but it runs through the engine's bathroom ((e)ng4). The emperor (阝) is very annoyed by the pipeline and every time he visits the bathroom he'll push its off button (关).
sound / voice / tone / noise / reputation / classifier for sounds
声
=
士
+
尸
+
丨
:
Sherlock Holmes (sh) hears the terrifying sound (声) of bone (丨) on stone in front of the engine ((e)ng1), and he's sure that there must be a ghost (尸). Indeed it's only the bachelor (士) who wants to scare Sherlock.