In reading order
The Time Machine Next Door: Explorers and Milkshakes
Iszi Lawrence
The Time Machine Next Door: Rule Breakers and Kiwi Keepers
Iszi Lawrence
The Time Machine Next Door: Artists and a Disappearing Dog
Iszi Lawrence
The Time Machine Next Door: Rebellions and Super Boots
Iszi Lawrence
The Time Machine Next Door: Inventors and Dinosaurs
Iszi Lawrence
The Time Machine Next Door: Scientists and Stripy Socks
Iszi Lawrence