Monster Mash Bash
Oswego High School 4250 IL-71 , Oswego, IL, United StatesThere's a frightening amount of things to do at this year's Bash! Crafts, candy games and more wear your Halloween costume, and join the fun at Oswego High School. New this year, pre-register for $5 or pay $8 at the door. Registration is per child. Adults are free. Registration closes Thursday, October 28. Register now!