Winter
It was hard to believe, even when Mr. Hermes told him so, that winter used to be fun. The mortals, he'd said, would skate on frozen ponds, have snowball fights, and even build creations in the snow, and when they were done they'd settle down and drink hot cocoa and other warm drinks.
Now Orpheus only knew winter for hard times, and he was grateful that Hermes offered him a glimpse of what the season could be like, if all was well. Eurydice had laughed at the stories at first—she'd seen firsthand how grueling winter was, and both of them had heard rumors of Hades approaching unfortunates lost in the snow.
Orpheus spoke so earnestly that she was inclined to believe him, though, and she'd never known him for lying despite her joke when they'd met.
But as Hades approached her, a ticket in hand that cost more than either of them could hope to make, all Eurydice could see was winter's hardships and the man offering her a way out of the cold.