Vitro by Jessica Khoury
On Skin Island, even the laws of creation can be broken.
On a remote island in the Pacific, Corpus scientists have taken test tube embryos and given them life. These beings—the Vitros—have knowledge and abilities most humans can only dream of. But they also have one enormous flaw.
Sophie Crue is determined to get to Skin Island and find her mother, a scientist who left Sophie behind years ago. With the help of Jim Julien, a young charter pilot, she arrives–and discovers a terrifying secret she never imagined: she has a Vitro twin, Lux, who is the culmination of Corpus’s dangerous research.
Now Sophie is torn between reuniting with the mother who betrayed her and protecting the genetically enhanced twin she never knew existed. But untangling the twisted strands of these relationships will have to wait, for Sophie and Jim are about to find out what happens when science stretches too far beyond its reach.
Going Rogue (Also Known As #2) by Robin Benway
Being permanently based in a local New York City high school as an undercover operative has its moments, good and bad, for 16-year-old safecracker Maggie Silver. Pros: More quality time with her former mark-turned-boyfriend Jesse Oliver and insanely cool best friend, Roux. Getting to spend quality time with her semi-retired and international spy honorary uncle, Angelo. Cons: High school and the accompanying cliques, bad lunches, and frustratingly simple locker combinations. But when Maggie’s parents are falsely accused of stealing priceless gold coins, Maggie uses her safecracking skills to try and clear their names. Too bad it only serves to put her and everyone she loves in danger. Maggie and her “new team” flee to Paris where they must come up with a plan to defeat their former allies.
Hollow City (Miss Peregrine’s #2) by Ransom Riggs
In 1940 after the first book ends, Jacob and his new Welsh island friends flee to London, the Peculiar capital of the world. Caul, a dangerous madman, is Miss Peregrine’s brother, and can steal Peculiar abilities for himself. The Peculiars must fight for survival, again.
All cover images and summaries from goodreads.