Neptune, King of the ocean, sends half-mermaids Emily and Aaron to the land of the midnight sun to investigate the source of the dangerous storms brewing in the ocean.

"A lovely and laugh-out-loud picture book from the award-winning author of Rude Cakes and Most Marshmallows. A silly read-aloud tale for kids about being yourself! Mabel isn't like the other mermaids. Lucky isn't like the other octopuses. But when they find each other, they discover that true friendship isn't about how you look, and that sometimes what we are searching for is right under our noses."--publisher's website.

Shelly, Coral, and Angel visit Flamingo Island with Shelly's mom, but Shelly must put things right when the rock she took as a keepsake ends up being a flamingo egg.

"On Mermaid Day, the mer-queen throws a fin-tastic party! She decorates her underwater castle and creatures of all kinds swim inside to celebrate together. Dolphins dance, narwhals play ring toss, and as night falls, the guests prepare to say goodnight to a mer-mazing day. But are all welcome to celebrate under the sea?" --publisher's website

"A young girl has always love mermaids. Every day she wishes she could be friends with one. And on one magical day, her wish comes true. Nestled on the beach, between their two worlds, these unlikely friends discover imaginative ways to go on many adventures. But will one stormy night drive the apart?" --book jacket

"Mermicorns Sirena and Lily are excited to learn magic that helps express their true feelings, but when Sirena wants to invite old friends to their secret clubhouse, Lily becomes jealous. Can Sirena have old friends and new friends?"--back cover.

"Oona is on a mission! A baby beluga whale has lost her way from her family and needs help getting back to her icy arctic home! But Oona and her best friend Otto have never traveled from their warm ocean waters before. Will old ship maps and a compass be enough to lead them through the dangerous storms ahead? Oona may be a little mermaid, but she is determined to see this big adventure through! With a bit of bravery and help from some new friends,...

"When Emily makes a wish on a magic stone, she gets a glimpse of what the future holds — and it’s a disaster! She tries to make things right, but each trip through time takes Emily to a future where things turn out badly for either the humans of Brightport or the merpeople of Shiprock. Plastic pollutes the ocean, garbage overflows the landfills, and the two towns are no longer getting along. Emily realizes she can't save her hometown and the ocean...