đ đ đ tiger tiger tiger for ultimate April, also Walpurgis Night / Eve, the first of two days marking what we might think of as “high spring” (in the northern hemisphere), turning to the last of the spring months; tomorrow, May 1st, is the more famous (it’s  May Day and also the Celtic festival Beltane).
The capsule story, from Wikipedia:
Walpurgis Night, an abbreviation of Saint Walpurgis Night (from the German Sankt-Walpurgisnacht), also known as Saint Walpurga’s Eve (alternatively spelled Saint Walburga’s Eve), is the eve of the Christian feast day of Saint Walpurga, an 8th-century abbess in Francia, and is celebrated on the night of 30 April and the day of 1 May. This feast commemorates the canonization of Saint Walpurga and the movement of her relics to Eichstätt, both of which occurred on 1 May 870.
Saint Walpurga was hailed by the Christians of Germany for battling “pest [AZ: bubonic plague], rabies, and whooping cough, as well as against witchcraft”. Christians prayed to God through the intercession of Saint Walpurga in order to protect themselves from witchcraft, as Saint Walpurga was successful in converting the local populace to Christianity. In parts of Europe, people continue to light bonfires on Saint Walpurga’s Eve in order to ward off evil spirits and witches.