Paisley Callanan, 19 months, raises her arms to show off her spider costume with a little encouragement from her sister Lucy, 4, and her mom, Kelly, in downtown Concord on Friday, Oct. 30, 2015. The girls’ father, Philip Callanan, is principal of Mill Brook School. (http://www.concordmonitor.com/photos/19234909-95/photos-downtown-concord-hosts-halloween-howl)