Simplify the following text for a Grade 10 native English-speaking person.
Original: A faded memorial plate , tucked away behind the island 's parish church , vaguely mentions 45 Soviet citizens who died on Alderney in 1940-45 , without saying how they died and why .
Simplified: A faded memorial plate in the island 's parish church mentions 45 Soviet citizens who died on Alderney in 1940-45 but does not say how they died and why .