The next floor down, the third, was a treasure trove.
Near as we could tell, it was a real treasure trove.
What they were not prepared for was a treasure trove.
"He may turn out to be a treasure trove, but we don't know that for a fact."
This book is a treasure trove with its 58 photographs.
To her friends and family in Cuba, she is a treasure trove.
As if he'd hand over such a treasure trove to a scientist.
Sarah set her treasure trove upon the long table in the kitchen.
Any object which would have been treasure trove if found before 24 September 1997.
"It was a treasure trove of things no one had seen in Canada," she said.