Sentence:  Amidst surroundings thus happily suggesting the idyllic and pastoral associations of Arcady, is an unpretending booth, the placards on which announce it to be the temporary resting-place of the "Far-famed Adepts of Thibet," who are there for a much-needed change, after a "3500 years' residence in the Desert of Gobi." There is also a solemn warning that "it is impossible to <WSD>spoof</WSD> a Mahatma." 
Meaning of the word marked with <WSD> tags:  To deceive.