Mutation by Roy Hunt

3*

Terror can come at any time, even during a routine day's work.

Crane operator Mark Coles is hard at work near the pristine lake of Lough Ree, when something evil escapes into the water.  A large greenish-black singular body, roughly the size of a dead cow’s hide; a hideous mutation.

After he witnesses it kill, he knows he must act fast: It's May, and tourist season has just begun.

Meanwhile, unaware of the deadly danger he is in, and driven by grief at the loss of his wife of sixty years, eighty-three year old Marcus Fee is on the lake, intent on committing suicide. Until the sight of a burning cruiser stops him...

I like stories like these, involving an uncontrolled force of nature that could one day actually happen.
Mark Coles is a strong and interesting character and some of the people he meets along the way to stopping this mutation, are well thought out and likeable if a little two dimensional.
The plot was decent, with a medium paced storyline and enough action to keep the reader interested.
One thing I did find slightly annoying and pointless though was the apparition, it never truly explained it’s presence and seemed to take a little of the shine off the Mutation.
Well,worth a read though.