Fairy Mermaids, The Goliath GrouperCan Coral & Sandy stop Spike, the Lionfish, from destroying the reef? In the third book of the Fairy Mermaid series, join Coral and Sandy on another thrilling underwater adventure! When a pesky lionfish named Spike threatens to destroy the delicate coral reef, our brave fairy mermaids spring into action. With the help of a misunderstood Goliath Grouper named Gill, they embark on a daring mission to outsmart the cunning predator. Gill, often feared for