Serenity Dennard's adoptive parents push for Serenity alert system After Serenity Dennard went missing after running away from the Children's Home in Rockerville, her family has been pushing to implement a new missing child alert in her name. In late February, Serenity's cousin started an online petition to create an alert system in her name. Back then, more than 62,000 people signed the petition. Currently, there is more than 310,000 signatures. The Serenity Alert would send a text message to the public if a child under 17 years old is considered missing and endangered.