In book I,which is named as PLAGUE AND WRATH, Apollo's intervention on Chryses' behalf begins the series of events that continue throughout the epic.When Chryses come to Greek’s swift ship to recover his captured daughter Chryseis .Chryses offers a ransom for his daughter which Agamemnon brutally rejects.Chryses appeal to Apollo causes the god to attack the Greek armies with plague.Achilles then calls an assembly , at which Agamemnon agrees to return Chryseis ,but demands immediate compensation.Achilles and Agamemnon quarrel over compensation. This intervention leads to the angering of Agamemnon at Calchas' prophecy and Achilles' withdrawal for battle.
In this book we find another divine intervention where it serves in an inspirational capacity to alter mortal character’s mental or physical abilities.The goddess ATHENE prevents Achilles killing Agamemnon. Because white –armed HERA sent her because HERA was concerned for both of the Greeks. She prevents Achilles from losing his temper and attacking Agamemnon, promising him greater glory if he waits. ATHENE's intervention alters the course of the story line. If Achilles had attacked Agamemnon, by winning he would have disrupted the chain of command and by losing he would have ended the story line. Without Agamemnon there is no war, without Achilles there is no hero and no rage.
Here another divine intervention occured when Achilles appeals for help to his divine mother THETIS.He laments