April 24, 10 am – noon. Celebrate Earth Day at the Killingworth Library – Come plant a seed with us! 2021 marks the 51st year of celebrating Earth Day! Start by following our family-friendly riddle walk (with a whole new batch of riddles for you solve) in the library’s back yard, ending at our Plant a Seed Station – we will provide the materials. Please register in advance at our library’s website