Con-fusion (The Amelia Hartliss Mysteries)

Many people are worried that the world is facing an energy crisis, when the oil runs out and the current generation of nuclear fission reactors reach the end of their useful lives and are retired. What can replace them? What can generate the electricity we need?
Some people think the answer is nuclear fusion. It has no residue, and is clean and infinitely replaceable. It is the process that powers the sun. Wouldn't it be wonderful if someone invented a process that worked?
Melia thinks she has met such a man. But wait a moment, isn't he a well-known and experienced conman? How does she know she can trust him? How does she know this isn't simply his latest scam?
Then people get murdered, and things really start to get serious.