Childs, Tera Lynn.  Forgive My Fins.  New York:  Katherine Tegen Books, 2010.  Print.
In this humorous take on mermaids, Lily is half-human, half-mermaid, and heir to the underwater kingdom of Thalassinia.  Lily is saving her first kiss for the boy of her dreams, whom afterward will be granted the ability to change into a mermaid and will rule Thalassinia by her side.  However, things get twisted when she accidentally kisses the wrong boy!  The themes of mermaids and teenage romance are found in both this book and the Water Trilogy.

Dolamore, Jaclyn.  Between the Sea and Sky.  New York:  Bloomsbury USA, 2011. Print.
Esmerine has always admired her sister’s position as a siren, the highest calling for a mermaid, but when her sister runs away, supposedly, to marry a human, Esmerine must leave the sea to find her.  On land, Esmerine encounters her long lost childhood friend, Alander, whom agrees to aide her in her search.  Just as Nia aspires to be an avatar in the Water Trilogy, Esmerine hopes to be raised to the level of siren in Between the Sea and Sky.  Readers will delight in the parallels between these two books that extend beyond mermaids.

Farley, Terri.  Seven Tears Into the Sea.  New York:  Simon Pulse, 2005.  Print.
On the coast of California, while working at her grandmother’s inn, Gwen falls in love with a boy hiding a potentially dark secret.  While the sea creature in this book is not specifically a mermaid, it is very similar in nature.  Readers who like reading about humans who live in the water, but do not necessarily need that creature to be a mermaid, will enjoy learning about a new human-aquatic creature – the selkie.

Friedman, Aimee.  Sea Change.  New York:  Point, 2009.  Print.
In this paranormal romance, Miranda journeys to the mysterious Selkie island to help her mother clear out their summer home so it can be sold.  However, Miranda begins uncovering secrets about her family’s past.  Even more secrets arise when Miranda starts dating the enigmatic boy named Leo working at the marine center.  Friedman offers her own suspenseful and romantic take on mermaids that readers will relish.

Madigan, L.K.  The Mermaid’s Mirror.  Boston:  Houghton Mifflin, 2010.  Print.
Lena has lived her whole life pining after the waters of the ocean.  However, her father, a former surfer who suffered a near drowning, does not want Lena to go anywhere near the water.  After catching sight of a gorgeous woman with a long tail one day though, Lena can no longer contain her curiosity and is determined to seek out the mysterious woman in the water.  Fans who liked the mermyds in the Water Trilogy will like reading another book focusing on the same creatures.