Little Monsters by Máire Roche
Every March sister has a rule. Jo goes furry when she is upset, and worse near a full moon. Beth grows bat wings at night and tends to fly off. Amy sprouts a fanged, fishy tail if she gets too close to salt water. And thirteen-year-old Meg, who is in charge of all of them, grows long twisted claws and a mouthful of sharp teeth whenever her feelings get too big, which is most of the time. Little Monsters by Máire Roche sets these rules out in its opening pages and then, in the week before Halloween in Salem, sets a real monster loose in the woods to see what happens when a girl who hides everything starts to wonder if the monster is her. How Máire Roche Builds Her Salem The four sisters have been in foster care since Meg was about four. They have moved between so many homes that Meg has learned the one rule that matters: be helpful, be quiet, and never give an adult a reason to send you away. …

