A free version can be found on ae-share.com , note that direct links might require membership or a "premium" account.

(like "Epic Book Scroll") Provide steps on how to open and edit AE project files Let me know what you'd like to do next. Epic Old Book, After Effects Project Files | VideoHive

The is an After Effects project template designed for creating dramatic, historical, or storytelling slideshows. It typically features 3D, old-fashioned book pages turning to reveal photos or videos. Based on search results, this project includes: AE Compatibility: CS4, CS6, and higher. Media Capacity: 44 placeholders for your images or videos. Format: 30 fps, no plugins required.

You can purchase or download the template from VideoHive .