Alasdair did illusion work for one of the residences — NPC Widow Sally Priestly. The theme is "ghosts of Hogwarts past." The house has been charmed to look vaguely like Hogwarts castle and various historical figures can be seen leaning out of windows/drifting around the premises soliloquizing about whatever events happened during their Hogwarts tenure. At certain intervals the house itself appears to be affected with various old disasters like the South Tower Collapse of 1127 and the Potions Laboratory Fires of 1459 (complete with colorful pillars of smoke from every window).

[Alasdair is also available for hire for illusion work for any other residents/businesses who want to participate!]