Jack and Annie are joined by Teddy and Kathleen as they travel to the snowy
Land-Behind-the-Clouds, where they search for the eye of the Ice Wizard and attempt to help
Merlin and Morgan.
— based on fandom.com
DEBUT
Winter of the Ice Wizard (Random House, September 2004) [print ·
e-book].
VARIANTS
Debut. Winter of the Ice Wizard (Random House, September 2004) [print · e-book].
Unspecified Year: The time travel is debatable because the kids go to a land of magic. We need to check whether the land is explicitly set in a particular time period.
Timeline Models
Single Static Timeline: Within the series, anything the kids do seems to fit known history rather than change it.
From the magic tree house in Frog Creek, Pennsylvania, circa 2019 ⋙ to a mythical ice kingdom at an unknown time. Round trip. Note: The mythical land is most likely not in our timeline.