Update: April 2003
It looks like, after some study, that we do have a couple of corrections to make to some folks that have asked about Casa Loma.
Although we still do not have a "firm" ghost report from the site, we do need to recognize a couple of facts...
It seems that the FIRST Lady Pellat did in fact die within the walls of Casa Loma and it's deeds were in her name. She and Sir Henry really spent their way out of financial stability leading to the castle being handed back over to the city after her death.
The confusion comes from the fact that there was a second Lady Pellat (who was the granddaughter of William Hamilton Merritt of Oak Hill fame) that survived the auctioning of the building and it's assets by the city thus, indeed, we now have one confirmed passing of someone intimately related to the castle.
Also, contrary to other reports, the tunnel between the castle and the stable/garage was indeed on occasion used by horses as well as people. Sir Henry was not happy about not being able to gain proprietary access to the local streets and not wishing to allow his prized horses to be "on display" to the masses amongst other reasons, occasionally used the tunnel to transport horses from site to site for a ride... so the occasional report we've had about horses IN the tunnel that we, mistakenly said was not probable is indeed, probable. We apologise for this mistake.
Still, as said above, we do not YET have a good, relate-able report on this imposing place but with our new information (gleaned from Austin Seton Thompson's book, Spadina: a Story of Old Toronto) we are now re-looking into some of the past reports sent in to us a little more closely.