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Review title: ex-submarine warfare instructor
Product review: This is a very strong 4/5 stars, if you keep in mind that Mr. DiMercurio is consciously moving from submarine fact into science fiction as his naval service time drifts into the past. This story had aptly motivated characters on both sides, high stakes, believable imagination, twists balanced by plausibility, and fluid writing. However, the ending dragged a bit, keeping my vote a whit below the 5 star level. I was disappointed with the follow on Barracuda, but I will give Piranha a try just because of this good story.
