Childhood's End (subtitled Lost & Found from the Age of Aquarius) is a compilation album of cover songs by Norwegian experimental collective Ulver.

"[3][4] The album includes versions of songs by The Pretty Things, The Byrds, Bonniwell's Music Machine, We the People, Jefferson Airplane, Gandalf, The Electric Prunes, The 13th Floor Elevators, The Troggs, The Left Banke, The Beau Brummels, Common People, Music Emporium, Curt Boettcher, The Fleur de Lys, and The United States of America.

The cover features a photograph by Hoang Van Danh of Phan Thi Kim Phuc fleeing a napalm attack by the Republic of Vietnam Air Force in 1972.

"[2] Rygg spent considerable time "digging around" to find the right songs to cover and explained that "[t]here's a missionary aspect to all this too, to make an exclamation mark to the fact that there are fucking golden nuggets before your Black Sabbaths.

[9] Natalie Zina Walschots wrote similarly in Exclaim!, describing the album as "deceptively simple", featuring an "achingly familiar" set of songs that, "rather than evoking fondness or nostalgia, conjure the unsettling shadow versions of themselves".

With a contemporary edge that occasionally removes the furry ambiguities of the originals and replaces them with a dark sense of the epic, the album bears enough of Ulver's touch (particularly thanks to founder Kristoffer Rygg's vocals), meaning that this should be palatable for fans of the band new to garage and psychedelic music.