I am not positive, but I am pretty sure, about 99.9% sure, that it was Boulder. If you read the Darkest Path, for either the first time or for the multiple time, you will for sure know.
Yes, Whitestorm's mother is Snowfur. Snowfur was a white she-cat with blue eyes and was the littermate of Bluestar. She died tragically in an accident involving a monster when Whitestorm was a young apprentice.
Yes, Whitestorm mated with Willowpelt and together they had a litter of kits. Whitestorm is also the father of Sorreltail, Sootfur, and Rainwhisker.
Yes, Whitestorm and Bluestar are related. Whitestorm is the son of Snowfur and Thistleclaw, making him Bluestar's nephew.
The ISBN of Master of Whitestorm is 0002239329.
Master of Whitestorm was created in 1992-04.
Master of Whitestorm has 400 pages.
Ferncloud's father is Whitestorm, a noble and respected warrior of ThunderClan. Whitestorm played a significant role in the Clan and was known for his wisdom and dedication to his Clanmates.
Whitestorm's parents are Snowfur (Bluestar's sister) and Thistleclaw, as mentioned in Bluestar's Prophecy.
Ferncloud and Ashfur share the same father, whose name is Whitestorm. Whitestorm was a respected warrior in ThunderClan and had many offspring, including Ferncloud and Ashfur.
Brackenfur. She was his second apprentice after Tawnypelt.
Whitestorm.
Brindleface and Whitestorm.