Which two ways does the author best create suspense in the story the somnambulist

The Somnambulist is a 2007 fantasy/horror novel set in the late Victorian period, and is the debut novel by Jonathan Barnes. The protagonists Edward Moon, a conjurer and detective, and his silent partner The Somnambulist, a milk-drinking giant who does not bleed when stabbed, are called to investigate a murder that may tie to the poetry and prophecies of Samuel Taylor Coleridge and the fate of London.

roses are red,

violets are black,

for what you said,

i hope you sit on a big fat tack.