once you beat the other 14 leaders go to route 25 and she will be ther
the 15th gym leader in soul sliver is blaine and he uses only fire type pokemon
He's in the seafoam islands.
The Kanto gym leaders come in no particular order, but Blaine is typically the last gym leader fought, and also the second to last gym leader appearing on the Trainer Card.
Blaine's gym is in the Seafoam Islands
The fourth gym leader in Pokemon Soul Silver is in Ecruteak City.
claire
in his gym
the 16th gym leader is:Trainer Blue
get a Pokemon with a ressisstance
After you beat the 15th Gym leader, you have to go to Cinnabar Island then you talk to Blue who is the only person on the island then he tells you to go the the Gym in Viridian City, where you battle him after getting through the maze.
The first Gym Leader who is Falkner, the Violet City Gym Leader, he has a Pidgey and a Pidgeotto.
The Gym and Gym leader is in the bottom left of the city near the Pokemon center.