Zeth's ears perk up at the mention of what sounds like an incredibly powerful magical weapon.
If there's even the chance of acquiring an artifact...and a tomb like this would have to have treasure in it either way, right?
Why they'd be doing the whole world a service by putting any treasure here back into circulation. No sense in it just gathering dust, or frost in this case, in some giant's tomb when it could be increasing the wealth and power of the oh-so-deserving Zeth Venagelida.
Zeth tries to project sorrow rather than greed.
"Yes, it's certainly important to get this poor poor woman's body back to her friends, but since she's dead there's no harm in checking out the tomb? Once we've made sure it's safe, of course. It would just be such a waste not to exploit this opportunity. Here, let me just-"
Zeth tries to figure out how to enter the tomb while not setting off whatever magical trap might have ended the tiefling's life.
OOC: Arcana
1D20+6 = [15]+6 = 21