The Time Stream is a science fiction novel by American writer John Taine (pseudonym of Eric Temple Bell).

The novel was originally serialized in four parts in the magazine Wonder Stories beginning in December 1931.

[1] The novel concerns time travel and links the world Eos at the beginning of the universe with the 1906 San Francisco earthquake.

Astounding reviewer P. Schuyler Miller described The Time Stream as "the strangest of all John Taine's novels," concluding that it was "less powerful" than other Taine fiction "because he tries to do too much.

"[2] Everett F. Bleiler noted that it is "generally conceded to be Taine's best novel, despite its somewhat confusing presentation and very ambivalent theme"; he concluded that the ambivalence "makes the novel interesting.