Groton’s Lost Lake Engine & Hose Company 3 will host its annual Christmas tree bonfire at 7 p.m. on Friday behind the Groton Public Library. Hot chocolate and snacks will be available. To schedule a tree pickup for the fire, contact the Fire Department at 978-448-6333. The cost is $10. Trees will be picked up Tuesday through Thursday. Full story for BostonGlobe.com subscribers.