Can others understand the content of the words embedded in the Message spell by the spellcaster, as well as those who respond to him?


Can others understand the content of the words embedded in the Message spell by the spellcaster, as well as those who respond to him?

Am I right that the meaning of the Message spell is transmitted through the verbal component, and for the answer the target must move its lips? (Can someone in this case understand the content transmitted by the spellcaster, by listening to sound or by reading lips, and the contents of the answer of the target, reading by its lips?)