Karen Gillan for Interview Magazine
A final word of warning. Although they are often referred to by such names as the Good Folk or the Fair Folk, there are as many species or unique variations whose reputation is that of malice, cruelty, or evil, and even those reported to be kind or helpful are also referred to warily by locals familiar with them. If the Hidden People, did, indeed, keep themselves neutral in the war between Heaven and Hell, it may be surmised that they all are capable great good and great evil.
— Emerson Blackwood
Blackwood’s Guide to Dangerous Fairies
Don’t be afraid of the Dark film illustrations
'Blackwood's Guide to Dangerous Fairies'-
French boogeyman the croque-mitaine gnaws off children’s fingers and lures them at night into dark corners.