The maximum character limit (15k) has been reached, so I will continue the FAQ here.
Q: Where are all the silver keys?
A: The silver keys are reusable, as in they don’t vanish if you open a chest.
Sliver Key Locations
1. Lookout Point: You will come across some bushes that can be slashed through, break them and you will find the key.
2. Guild Woods: Buy a Rod from Bowerstone and fish in the pond at the guild woods.
3. Orchard Farm: Run to the dead end of the farm and fish on the pier.
4. Fisher Creek: Fish on the north side of the old mans home
5. Fisher Creek: Win second prize in the fishing competition.
6. GreatwoodLake: Run up the hill at the entrance and find a key.
7. Bowersone South: Go to the balcony of the clothing store.
8. Bowerstone South: Donate 25 books to the school
9. DarkwoodLake: Look for a structure with a hole in it and shoot an arrow at it to reveal a key.
10. Ancient Cullis Gate: Fish on the bridge.
11. Oakvale: Go to the Memorial Garden and dig next to the large statue.
12. Oakvale: Win second prize in the chicken competition
13. Twinblade’s Clamp: Dig near the chest around dome flowers.
14. HobbeCave: Go to the focus chamber and dig in the circle of mushrooms
15. Rose Cottage: Dig in the circle of flowers.
16. Grey House: Fish in the pond next to the Demon Door.
17. Knothole Glade: on the south side of the map look between two houses and find a place with dirt surrounded by grass and dig.
18. WitchwoodLake: Dig at the red-looking statue.
19. Withcwood Stones: Fish next to the Demon Door.
20. Windmill Hill: Dig in the circle of flowers next to the windmill.
21. Windmill Hill: Dig in the circle of flowers next the house.
22. Lychfield Graveyard: open a crypt to find one.
23. Lychfield Graveyard: Dig up a grave.
24. Lychfield Graveyard: Fish in a small pond.
25. Cliffside Path: Dig in a ring of mushrooms
26. Headsman’s Hill: fish near the cave where you fight Thunder.
27. Bowerstone Manor: In the Manor at Bowerstone North
28. HookCoast: Steal it from a cabinet at the lighthouse.
29. The LostBay: Dig in the grave at the house
30. Necropolis: Fish in the pond