the blow book
... that a magic trick called the blow book was used in the 16th century to refute the existence of witchcraft?
... that a <a class="mw-redirect" href="./Magic_trick" id="mwAX4" rel="mw:WikiLink" title="Magic trick">magic trick</a> called <b id="mwAX8"><a href="./Blow_book" id="mwAYA" rel="mw:WikiLink" title="Blow book">the blow book</a></b> was used in the 16th century to refute the existence of witchcraft?