Alleal’s Whistle:
A long silver whistle, when you blow it, it emits a loud shriek barely in your hearing range. You also turn invisible! You’re invisible until you attack or you dismiss it. While invisibility is useful , you’ll need it, because any monsters in the vicinity will have heard the whistle, and unfortunately some are quite proficient with hearing and scent.
If you blow the whistle while you are invisible, anything which is hidden by magic within your range of sight will be shown to you.
Any advice or thoughts are welcome as I am new to this, thanks!