Google search: Fable Silver Keys

I think Gamebanshee is the best site, you should check it out

heres a trick to get silver keys ok u know how u can *hero save* during quest only well take the hobbe cave quest make sure u have a spade and go to the old womens house near the house there should be a circle of roses dig in the middle of it and theres a silver key hero save when u get the key then load the game and then repeat the procces

Don't tell him about gamebanshee no one will come on this site any more, if they how good it it is!!!

any time you see a bubble in the water there might be a key. look on the maps for even the smallest water holes.
as far as digging look for odd looking things, ring of rouses, rased mound of dirt. so on.
get all 25 keys.
if you play the game out and get to the last island you will find the last chest.
once you open there is a deamon door that asks you for all your keys to open.
but first open all chests

go to cheatplanet.com should help u alot