The Strangeworlds Travel Agency by L.D. Lapinski

Description

When 12 year old Flick Hudson accidentally ends up in the Strangeworlds Travel Agency, she discovers there are hundreds of other worlds just steps away from ours. All you have to do to visit them is jump into the right suitcase.  Then Flick is invited to joint Strangeworlds’ magical travel society, but soon realises something isn’t right in the magical multiverse. Once Flick realises what is happening, she must race against time, travelling through unchartered worlds, seeking to fix things before all the worlds, including our own, vanish completely.376pp

The author lives just outside Sherwood Forest.