Phoenix Burning by Bryony Pearce

As they sail the junk-filled seas, the crew of the Phoenix have just one thing on their mind – the search for the island where they can settle. But their ship is missing a crucial component, so when Ayla appears from enemy ship the Banshee offering to cut a deal, they accept. Toby and Ayla...

Red Queen by Victoria Aveyard

This is a world divided by blood – red or silver. The Reds are commoners, ruled by a Silver elite in possession of god-like superpowers. And to Mare Barrow, a seventeen-year-old Red girl from the poverty-stricken Stilts, it seems like nothing will ever change.  That is, until she finds herself working in the Silver Palace....