No
Grover does not die.
No, Grover did not die. He was still alive and well at the end of the series.
His name is actually Grover Underwood. His best friend is Percy Jackson. He does not die.
Grover Hutchins died in 2010.
Grover Seitz died in 1957.
Thomas Grover died in 1886.
Frederick Grover died in 1973.
Martin Grover died in 1875.
Grover Simcox died in 1966.
Linda Grover died in 2010.
Grover Sellers died in 1980.
Grover Whalen died on April 20, 1962.