CONCORD, N.H. – “The flood is coming.”

Bright green signs bearing that mysterious message have been popping up at Plymouth State University, where students are trying to generate buzz about a fundraising efforts to benefit alumni.

But not just any alumni; students are trying to help a group of Pakistani teachers who spent July attending the university’s training institute then returned home to devastating floods.

The “flood” hinted at on the signs will appear Monday, when 25,000 small green flags will be planted on the university’s Alumni green.

Each flag represents 800 of the 20 million Pakistani people left homeless by the floods, which began in late July and eventually covered one-fifth of the country.

The display will kick off a week of fundraising for flood relief efforts. A table will be set up at the student union building to collect donations, and about 75 volunteers dubbed “ambassadors” will wear bright green shirts all week as they strike up conversations with their peers.