Ye Olde Magic Shoppe is a good location for Dieter, apparently. The shopkeepers agree to the terms, with their eyes bulging at the Mask and the Tome. The man says, in hushed tones, We will gladly pay richly for the Heart if you choose to sell it rather than destroy it. Sure, it might mean the end of the world but you'd be rolling in riches, he concludes with a wink.
Aquaire acquires some mithril chain and a slim dagger. It is all I need, she explains. I am a creature of magic, don't forget, and not so fragile as you think. It's cute of you to care though. She gives him a nice kiss on his forehead.
Porters are apparently impossible to come by, with conditions as they are as well as the tales of lost expeditions to the Lost Caverns no one wants to risk their lives. They'd rather just eat, drink, and be merry as the end times are at hand.
The group at the Monastery provide you with war horses and ponies for the journey. They have saddle bags loaded with pemmican, dried fruit, and hardtack (and Aquaire's with dried fish), enough for a few months if eaten sparingly. They also provide multiple full wineskins and water-skins and warn you not to overfill them, as freezing will cause the skins to burst.
Any other purchases to be made?