Rob Lambert 
Emerald Eye: Travelling in Time is Endless [EPUB ebook] 

Craig and Hollie were moving from the city to rural Malvern, they expected a more quiet life that was to be boring … not! The new home was an old one, with an even older summerhouse at the bottom of the garden. Inside were years of secrets that span hundreds of years, which was to bring adventure like no other. History was about to be repeated. Dreams of time travel were about to become nightmares as they found their lives, and of those they befriend, in danger. It would not take long before everyone they loved and cared for are helping them fight evil, and solve everything from murder to finding hidden treasure that had laid buried for hundreds of years.