Lewis Wilson has left Kettering Town to join Skrill South side Whitehawk.
Poppies boss Dean Thomas revealed earlier this week that a seven-day approach had been made for the striker, who has scored three goals in his last four games for Kettering.
But he has opted to join a team from two levels above having signed for the Poppies during the summer after a successful loan stint last season.
It has left Thomas with a real headache for Saturday’s FA Trophy home clash with Romulus as Jake Newman sits out due to a one-match ban.
“I am disappointed that Lewis has left, of course,” the Poppies manager said.
“He has really found his feet in the last few matches and looked a real threat.
“I hoped he would stay with us and continue to enjoy his football.
“But he has been offered more money and once a player has made their mind up, there isn’t much you can do about it.
“It has left us a bit short in striking options with Jake being suspended.
“But we will have a good look at it and it means that others will get an opportunity to come in and show what they can do.”
There was some good news on the transfer front this week, however, with Peterborough United allowing goalkeeper Charlie Horton to remain at Latimer Park for another month.
Thomas added: “I think Charlie has done very well for us. He has had a couple of clean sheets in the last two matches.
“Peterborough are keen for him to play games so it is a situation that suits everyone.”.