Q 040
A little question about the Death Delver from Heroes of Horror:

At 2nd level, they gain spontaneous casting, i.e. "like a cleric, can lose any prepared spell in order to cast any cure spell of the same level or lower."

The way it is worded, it seems that a Death Delver can convert prepared spells from any class, divine or arcane, and not just from the weak Death Delver spell progression. Is this correct?