[H]im there they found, / Squat like a toad, cloſe at the ear of Eve, / Aſſaying by his deviliſh art to reach / The organs of her fancy', and with them forge / Illuſions as he liſt, phantaſms and dreams, […]

Flotsam is “floatsome,” cargo or wreckage found floating on the surface of the ocean or goods seen to float up from the hull of a wrecked ship.

An underchallenge also reflects an imbalance.

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