We've got it. This is a spell we sometimes use to find each other when we're exploring.
Professor, you can get your hand on small stones there inside the castle, we assume, right? Find two that are as close to each other in size as you can find.
Take the two and pass your wand over them both in a figure eight and say, 'gemina vocationem ad geminos.' Then send one of the stones to Justin and keep the other yourself, somewhere safe. Maybe put it into one of the beads on your bracelet.
Say Justin buries the backpack and puts the stone over it. If you can get away, take your stone out, tap it with your wand and say, 'vocant vibrationis.' Turn in a circle, and you'll feel the stone vibrate when you're turned in the direction of the one that Justin's placed over the backpack. It'll vibrate harder the closer you get.
no subject
Professor, you can get your hand on small stones there inside the castle, we assume, right? Find two that are as close to each other in size as you can find.
Take the two and pass your wand over them both in a figure eight and say, 'gemina vocationem ad geminos.' Then send one of the stones to Justin and keep the other yourself, somewhere safe. Maybe put it into one of the beads on your bracelet.
Say Justin buries the backpack and puts the stone over it. If you can get away, take your stone out, tap it with your wand and say, 'vocant vibrationis.' Turn in a circle, and you'll feel the stone vibrate when you're turned in the direction of the one that Justin's placed over the backpack. It'll vibrate harder the closer you get.