Best Friends Forever?

The Hollows is going on a ski adventure
Journey to Switzerland with Zee as she takes on the slopes in Book 6 of The Zee
Files.

The school winter field trip
promises a week of snow-filled fun that everyone in year nine is looking
forward to--everyone except Zee. Not only is this her first trip anywhere without her parents, but Zee doesn't know how to ski What if she falls and embarrasses herself? Will everyone laugh at her?

Then right before the trip, Zee gets some shocking news: her best friend Ally is transferring... to The Hollows Zee knows she should be excited, so why does she have a weird feeling about it?