I’m looking for a Young Adult Mystery possibly from TAB books, mid-1970’s. Teenage girl walks by spooky house everyday on way to school. One day goes in and she has a different identity in a different time. But she knows who she ‘really’ is and tries to get back.
Could it be The Wicked Wicked Ladies in the Haunted House by Mary Chase?
https://forgottenstoriesweb.wordpress.com/2019/10/22/the-wicked-wicked-ladies-in-the-haunted-house/