Michael Garrett is part of the quest chain that introduces Forsaken players to use of flight paths.
I have placed the Sepulcher's supplies into this crate. If you have already visited the Sepulcher and spoken with their bat master, then you may ride a bat back to him.
If you must travel a long distance, then a bat is your best option.
This crate must reach the Sepulcher in Silverpine? That is easily done; our bats fly there daily.