roadblock.

hello again. i have hit a roadblock in my studies.

i have decided to attempt to learn a basic teleportation spell. i plan to move the box onto the x i have marked on the ground. however, everytime i create the portal and toss the box into it, it simply bounces off. i have attempted the same test with a screamer and recieve the same result.

any arcane advice would be appreciated, thank you.