The Blood Fountains featured in Blood Omen. They bestowed Kain with new gifts as he journeyed throughout Nosgoth. Kain could only drink from each fountain once. After the first time, the red blood turned black and it would harm Kain if he tried to consume it. The Blood Fountain would rebuke Kain for being 'greedy'.
The gifts bestowed by the fountains were essential to Kain's progress. He needed the strength they granted to move boulders that blocked his path. He needed to gain his Beguile form before he could speak with King Ottmar in Willendorf. Below is a list of what the nine fountains did: