| A | B |
|---|
| estuary | arm of the sea that extends to the river |
| rubble | loose mass of rocks |
| bulwark | wall raised a defenisive fortification |
| unsubstantial | lacking material substance or strenth |
| mirage | optical illusion |
| undulating | moving in a smooth wavelike motion |
| obscured | not easily noticed |
| percept | capable of being percived |
| tactful | able to speak or act without offending |
| speculatively | considering a subject toughtfully |
| illusions | erroneous perception of reality |
| deftly | quickly and skillfuly |
| subsided | became less active |
| incandescence | high degree of brilliance |
| instinctively | acting on an iborn pattern of behavior |
