The Shiver - Walpurgis (1969)

The SHIVER is known as one of the most legendary (and mysterious) Swiss psychedelic rock quintets in late 1960s. "Walpurgis" originally released in 1969 via an independent label Maris Musik is renowned as an LP covered in a weird sleeve drawn by H.R. Giger. In 2004 "Walpurgis" has been reissued as a CD with three bonus tracks via Garden Of Delights.
Occult themes in popular rock music were nonexistent until the year 1967 when The Beatles decided to include Aleister Crowley on the jam-packed but obviously symbolic album cover of 'Sgt Pepper's Lonely Hearts Club.'
Included in this eclectic mix of occult themed bands is the relatively obscure Swiss band THE SHIVER which released its sole artifact WALPURGIS in 1969 and displayed the very first album cover to feature the macabre art of Swiss artist H.R. Giger. The title WALPURGIS is thought of as an ancient Pagan holiday or the spring equivalent of Halloween but in modern times is better known as the holy time of the year for the Satanic cults that worship Molech and other dark forces like Lucifer or Satan. They perform human sacrifices in order to pay the evil spirits so that they can do the bidding of those who seek greater powers from the evil forces. Like many of these early proto bands, THE SHIVER never explicitly engaged in such promotion of the occult but rather flirted with its existence through its lyrics and visual imagery in the context of the contemporary popular sounds of the era.
(progarchives.com/artist.asp?id=9819)