Summary of temptation of karna

I'm not sure where you are referring to? In book 8 Karna is resolved to kill Arjuna. Salya tries to dissuade Karna from going into battle with Arjuna since Arjuna and Krsna are invincible and have more powerful weapons, but Karna shows his bitterness when he recounts the time when he himself sought the cosmic weapons only to see them given to Arjuna instead. Karna swears to kill Arjuna with his own weapons. After a short period of fighting, Yudhisthira and Arjuna get in a spat over the fact that Arjuna has yet to kill Karna, which results in Arjuna having to be talked out of Yudhisthira, Yudhisthira suffering Arjuna's rudeness and vowing to abdicate his kingdom to Bhima, and the two ultimately resolving their issues to join forces again.