What Goodreads has to say:
It’s been two years since Ellie last spoke to Edward. She thinks she’s left the spirit world behind. But the spirits won’t take no for an answer... When Ellie’s Mum returns to Inchwood Manor, Ellie finds herself going too... and is transported back to the 1930s, discovering a plot to impersonate the King of England.
With the Second World War coming, and the first evil spirits starting to escape into the mortal world, Ellie is fighting alongside some unexpected allies...
Rob Keeley is back with High Spirits, the fourth instalment in his multi-award-listed Spirits series. The series allows young people to learn more about other times, as well as the time in which they live.