Complex sentence: After 29 days and failed attempts top negotiate with the Spanish, Keyms ordered Santo Tome looted and burned, and set off back down the Orinoco to rejoin Raliegh and their fleet, finally arriving back there on March 2nd.
Split into simpler sentences: After 29 days and failed attempts to negotiate with the Spanish, Keyms ordered Santo Tome looted and burned. They set off back down the Orinoco to rejoin Raliegh and their fleet, finally arriving back there on March 2nd.