At Sea
by Nathan Fung
Each clue clues the name of one of the Earth's tectonic plates.
- NAZCA
- PACIFIC
- JUAN DE FUCA
- NORTH AMERICAN
- ARABIAN
- SANDWICH
- RIVERA
- EASTER
- CAROLINE
- SHETLAND
- COCOS
- INDIAN
- AUSTRALIAN
- EURASIAN
- SCOTIA
- PHILIPPINE
The diagram shows a plate adjacency graph where the lines connect the vertices corresponding to adjacent plates; however, there are four extra lines in the diagram. These lines connect the vertices corresponding to EASTER-SANDWICH-CAROLINE-SCOTIA-NORTH AMERICAN into a chain.
Reading the first letter of the plate name on the EASTER end of the chain, the second letter of the next in the chain, and so on gives the answer EARTH.