There is always an understory behind the narrative. There's fun and education tere."Killick, a pot of coffee, quick as you like!"
I actually spent 27 years in the RN and learned so much about naval heritage from these books. The name Killick did confuse me though because in the RN, Killick is a colloquialism for Leading Hand.
A Killick is also a small anchor, hence the nickname for leading hand as their rank badge is a small fouled anchor.