Help with James Quest 1

[braves27330]

I just finished Level 4, and got the white sword. Have no clue what to do next.

[braves27330]

I just got the whistle. Going to bed now. I want to try to find whats next on my own for a while, but if I can't find it, I'll post again Sorry about the double post, but I cant find whats next.

where is the letter and power bracelet

[LinkMaster500]

If you need to edit a posting, please use the Edit button from now on. You may already know that but inadvertently double-posted.