Anne's youngest son, Shirley, comes of age and immediately joins the flying corps. Jerry Meredith is wounded at Vimy Ridge, and in early May 1918, Jem is reported wounded and missing following a trench raid. The Blythes spend nearly five months not knowing Jem's fate, but are encouraged by Dog Monday's continued presence at the train station, as Susan reasons a dog so troubled by the death of his master's brother surely would sense a tragedy involving his master. Finally the family receives a telegram: Jem had been taken prisoner in Germany, but eventually escaped to Holland and is now proceeding to England for medical treatment.