[Loki appears in Jotunheim] 
King Laufey: Kill him. 
Loki: After all I've done for you? 
King Laufey: ...So you're the one who led us into Asgard. 
Loki: That was just a bit of fun, really. [bad word] my brother's big day, and to protect the realm from his [bad word] a little longer. 
King Laufey: I will hear you. 
Loki: I will conceal you and a handful of your soldiers, lead you into Odin's chambers, and you can slay him where he lies. 
King Laufey: Why not kill him yourself? 
Loki: I suspect that the Asgardians would not take kindly to a king who had murdered his predecessor. Once Odin is dead, I will return the Casket to you... 
[Laufey stands, his expression hungry] 
Loki: And you can return Jotunheim to all its, uh... 
[glances around] 
Loki: Glory. 
King Laufey: I... accept. 

Loki: What troubles you, gatekeeper? 
Heimdall: I turned my gaze upon you in Jotunheim but could neither see you or hear you. You were shrouded from me like the Frost Giants that had entered this realm. 
Loki: Perhaps your senses have weakened after your many years of service. 
Heimdall: Or perhaps someone has found a way to hide that which he does not wish me to see.
Loki: You wield great power, Heimdall. Tell me, did Odin fear you? 
Heimdall: No. 
Loki: Why not? 
Heimdall: Because he is my king, and I am sworn to obey him. 
Loki: He was your king. And now you are sworn to obey me, yes? 
Heimdall: Yes.