Joe frowned as she tightned the string on the bow, not because she did it but because he had missed it himself and he hated knowing that something that small went unnoticed. Making a weapon less accurate meant increasing the odds that one of the demi gods around camp could die and that wasn't something hew anted to deal with. "well I've been working on several projects today one is that dagger one of the other athena girl's asked for, then I worked a bit on this cross bow for the overall armory, and now that you're here I'm gonna test something I built for you to help with your invisiblity" he said as he reached into a nearby safe and pulled out a small silver bracelet.
"this bracelet once I've completly finished it should give you an extra one to two hours of invisbility as long as you wear it but this one is a prototype and I'm hoping you'll test it for me" he said