Shadowhouse Fall (The Shadowshaper Cypher, Book 2)

In addition to the ordinary problems of a Puerto Rican teenager in Brooklyn, Sierra Santiago is working on developing her shadowshaping skills, and she is beginning to think she may need all the skill she can summon because it seems that when she channeled hundreds of spirits through herself in order to defeat Wick she woke up something very powerful and very unfriendly and put her family and friends at risk.