go to burned tower just above the gym. you will find the gym leader at the start and he will talk to you. then you have to battle your rival. after that go down the ladder. as you can see there are the 3 legendary dogs. they will run away and the man who talked to you at the start will come down the ladder after he talks to you go back up the ladder and go to the gym and you can go in now. PS you can now catch the 3 dogs after the gym has been beaten.
The fourth gym leader in Pokemon Soul Silver is in Ecruteak City.
Go to the Burned tower.
his name is morty and he's in Ecruteak city
The 5th Gym is in Cianwood City in Pokemon Silver, Gold, and Crystal.
in his gym
In the gym!
claire
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Poke dolls can be bought at a poke mart after getting past the 4th gym leader.
He is on Cinnabarr Island.
move to the 8th gym
go to the Pokemon gym