Achilles still refuses to fight, even though Agamemnon has offered him a huge reward. Nestor has advised them to put a spy into the Trojan camp, at which Diomedes has volunteered himself.
Hector sent a scout to the Achaean camp, who has been captured and interrogated by Odysseus. The Greek spies entered the Thracian camp and killed their king and 12 of their men. I warned them that another angry god may wake the soldiers, but nonetheless, they have returned safely.