His analysis of the earliest known star map in Egypt (the "Senenmut star-map"[1]) led to von Spaeth publishing an exact dating of its time and period in Egyptian history and of the reign of Queen Hatshepsut.

[citation needed] The series of five books on the biblical figure Moses is a semi-fictional work based on ancient textual sources such as the Rabbinical writings, archaeological evidence, and astronomical data.

[2] [3] [4] In the first book of the series, The Suppressed Record: Moses' Unknown Egyptian Background (1999), von Spaeth suggests that Moses was an Egyptian prince and heir to the throne who found himself disinherited and forced into exile as a result of complex plots and intrigues at the royal court of Pharaohs Hatshepsut and Thutmose III (approx.

Von Spaeth devotes a significant portion of the book to drawing parallels between Moses and Queen Hatshepsut's chief consul Senenmut.

[8][9] The reception of the second book was very positive, one critic calling it "especially impressive",[10] although others found it scientifically lacking, but excellent as crime fiction.