The head teacher of a private school that went into administration only three weeks ago said it was now "back in business" after reopening on Monday.
Mr Price told pupils "we've really got to make it work"
About half the 50 sixth form students who were at Newlands School, in East Sussex, before the Easter holidays have returned to continue their A-levels.
Two parents, Mike Holland and John Summers, saved it with the £2.5m purchase of two school buildings.
However, less than 20% of former pupils are back at the new Newlands School.
Many of the 450 children found places at other schools during the Easter break.
It is hoped some of them might return for the beginning of the next school year in September.
Almost 60 are now back on the books at Newlands, including around 40 pupils from the lower school who are expected to return next Tuesday.
But head teacher Oliver Price said: "The impression I get is that huge numbers are very keen to come back.
The school closed down on 3 April due to financial difficulties
"Newlands is a very, very special place and it's full of affection and good cheer and a unique atmosphere which we are going to recreate."
Mr Holland and Mr Summers - who both have children at Newlands - stepped in with money, which was used to buy two former boarding house buildings away from the main school site in Sutton Road, Seaford.
They also paid a month's rent on the main buildings and hope to be using those again within a few weeks.
The two Sussex businessmen jointly run a golf course in Hastings as well as having separate interests in property, hotels and publishing.
They have appointed a business manager to ensure the school survives, saying "failure is not in our vocabulary".