In the Pandora's Box story of 38 Latin Stories, the last sentence ends:
Etiam si vita plena malorum est, spem semper habemus.
The vita here appears to be in the ablative. I don't understand quite why, other than running through all the other cases and determining that none of the other ones seem to apply.
I'm only on Ch.5 of Wheelock's and I know the ablative is covered in later chapters but I was just ...