You have a +1 bonus to attack and damage rolls made with this magic weapon. When thrown, this weapon always returns to you unless fully obstructed from doing so. When you miss an attack with this weapon, it makes an extremely loud womp wooooomp sound. You and your entire party must suceed on a stealth check or alert all enemies in a 30 ft radius of your exact location. The stealth check is DC 15 + the highest wisdom modifier of the enemy, minimum of 0 or a stealth check chosen by the DM. 

The boomerang is a ranged weapon, and any creature proficient with the javelin is also proficient with this weapon.

On a miss, a boomerang returns to the thrower's hand.

Notes: Bonus: Magic, Damage, Combat, Range