Fans of Ross Welford’s other children’s books have no doubt come to expect from his stories a good dose of time travel, technology-gone-wrong or an otherwise thrilling sci-fi twist, and his book The Dog Who Saved the World follows suit perfectly. Georgie Santos loves dogs more than anything in the world. When Dad’s new girlfriend Jessica moves in, Georgie’s beloved dog Mr Mash is forced to move out because of Jessica’s pet allergies. Unimpressed, Georgie volunteers to help out at the dog shelter where Mr Mash is rehoused, but is soon no longer allowed to see him after a deadly and highly contagious disease threatens the life of every dog in the country and to her horror, Mr Mash himself becomes sick…