Please add a series to my page

[Anouk]

Hello,

I would like to add a series to my page, called: Seasons in The Hollow.
The four books that are a part of the series are already on my profile.

Winter Days & Historical Gays (#1) Winter Days & Historical Gays
Spring Dates & Sprinkled Cakes (#2) Spring Dates & Sprinkled Cakes
Summer Nights & Security Lights (#3) Summer Nights & Security Lights
Autumn Leaves & Flannel Sleeves (#4) Autumn Leaves & Flannel Sleeves

Thank you so much for your help!

- Anouk Anouk de Rooij

[Camille]

To be a series on Goodreads, books need to have more than a common theme -- like characters in common, an overarching storyline, a shared universe, etc.

How are these books connected?