Since volume 39 of '' The Grantville Gazette '' ( 2012 ) , Garrett W. Vance has been writing an ongoing serial in the '' Time Spike '' universe , known as '' Time Spike : The Mysterious Mesa '' concerning the adventures of a citizen of the newly formed Republic of Texas serving as a soldier in the United States Army Cavalry who was escorting the Cherokee during the Trail of Tears incident , a Spaniard serving in Hernando de Soto 's 16th century expedition across the Southern United States , and several pre-Columbian Native Americans from several different time periods ranging from the Neolithic to the Mississippian culture period . Vance 's stories was reissued as a single volume by Eric Flint 's Ring of Fire Press in 2018 . To date , this is the only other major work that is written in the '' Time Spike '' universe
Trail of Tears
Trail of Tears
Assiti Shards series