Here are some other
books with a mix of magic, fantasy, family, adventure, and/or mythology
that I think you may like:
Pirate Curse (Wave Walkers, book 1) by Kai Meyer.
In a place similar to the 1706 Caribbean, two fourteen-year-old
"polliwogs"--humans who can walk on water--rely on a mysterious figure
known as the Ghost Trader and a band of pirates to help them escape from
the evil that is chasing them.
The Night Tourist by Katherine Marsh.