“Leonard keeps talking about hieroglyphs,” said Nobby. “What're they, sarge?”
Colon hesitated, but not for long. “A type of mollusc, corporal.”
“Cor, you know everything, sarge,” said Nobby admiringly. “That's what hieroglyphs are, is it? So, if we go any deeper, they'll be loweroglyphs?”
There was something slightly off-putting about Nobby's grin. Sergeant Colon decided to go for broke.
“Don't be daft, Nobby. ‘Loweroglphys if you go lower…’ Oh my me.”
“Everyone knows you don't get loweroglyphs in these waters.”