In Mahan's Wake is ATG’s third supplement for Dawn of the Battleship. It has thirty-one scenarios, a mix of historical battles, like the Sino-Japanese War, near-historical (“almost happened”), and fictional scenarios. The latter include a series of scenarios called the Great Maritime War of 1899, by William Le Queux, one of the many “war scare” books of that period (the techno-thrillers of that age). The story line was converted into playable scenarios by the knowledgeable Bob Eldridge, who unfortunately passed away in 2017. Mike Harris, his co-author, has finished the work. In addition to the scenarios, the book includes annexes covering all the ships and weapons required to play them.