CHAPTER XXI.

Tale by Hogg, the Ettrick Shepherd--Aikwood Castle--The Witch Henbane--Imps demanding Work--Michael Scott--Curious Sport--Dreadful Threat--Rats transformed into the form of Men--Inventor of Gunpowder--Summoning Evil Spirits--Latin the Language best understood by Satin and his Emissaries--Holy Signs and Charms--Effects of a Friar's Blessing--Magic Lantern--Michael Scott's Subscribed Conditions--Imps' Song--Dreadful Storm--Warlocks' Hymn--Eildon Hill 210