Nothing... Wonderful in signs, and Significant in wonders!

Words are sometimes ridiculous.
People, even more so:

Signs and wonders, eh? Pity if there is nothing wonderful in signs, and significant in wonders! There's a clue somewhere; wait a bit; hist - hark! By Jove, I have it! Look you, Doubloon...

'Tis a right-straight mystery. Yet who holds le secret?