/lit/ - Literature

Not an excerpt, but I've been trying to shop a YA book, and have been told that the concept isn't enough of a hook.

>Light supernatural/origins story
>Droll teenage girl in Florida spends a summer working at the nursery of a childhood friend
>Discovers she has the power to drain plants/trees of their chlorophyll, harnessing it as an energy attack
>This however kills whatever she drains
>Has to use the power to save her friends/town when a hurricane hits

I thought it was a damn good, original idea. Am I missing something?