Outside the convenience store by the school, there is often found a parked bus. This bus was able to travel between England and Japan, according to Sam, since it transports Grian back to them. Sam also calls it "a boat bus", Taurtis calls it "a submarine bus", but it is Majo Ellen who hints that it "could be a magic bus..." (in the first Halloween Special episode).
After an incident where Taurtis is stabbed, he attempts to drive the bus but ends up blacking out and crashing it. The bus is then later replaced with a more elaborate one after this.
In the finale of the Christmas Special, Sam (and Dom) seek refuge in the magic bus from The Snowman, who is able to disassemble the bus while also encasing it in snow.