Untold Tales (full title: Untold Tales – Rare and Previously Unreleased Studio and Live Recordings from 1993–2017) is a compilation album by American progressive rock band Glass Hammer, released on October 20, 2017 to celebrate the band's 25th anniversary.

This version was made by Schendel, originally as a part of a planned entire re-recording of the album, to celebrate the band's fifteenth anniversary.

[6] The song "Infusion" was originally released as a part of Love Changes, a 1995 collaborative album credited to "Tracy Cloud featuring Glass Hammer".

[6] "Identity Principle", which Babb called "one of our best epics", was originally recorded in the "early 90s" for an abandoned project, featuring Walter Moore on vocals.

[6] "Babb's Bach" is a recording from 2008 in which Babb performs a re-arranged instrumental version of an excerpt of the 1731 church cantata Wachet auf, ruft uns die Stimme, BWV 140 by Johann Sebastian Bach, namely the fourth movement, Zion hört die Wächter singen.

He was inspired to record the song by Wendy Carlos' 1968 album Switched-On Bach, which was Babb's introduction to synthesizer.

It features singer Laura Lindstrom Davis, who appeared on previous Glass Hammer works, including 2005's The Inconsolable Secret.

[6] "The Impulsive Type" features "live drum tracks" performed by Neil Peart of Rush, originally recorded for the sound library Sonic Reality.

"[11] "No Man’s Land Live" was recorded on May 6, 2017 during a concert at Camp House in Chattanooga, Tennessee, where the band performed the album Valkyrie in its entirety.