Whilst most Millwall fans were enjoying March's international break, Lions matchday receptionist Karen Powell and 'Team Sophie' were undertaking the most grueling of tasks - walking to the 12 professional football grounds in London.
The walk was dedicated to the memory of Sophie Powell, Karen's daughter who battled cancer for almost two years and despite a very tough treatment regime which included surgery, chemotherapy and radiotherapy, sadly passed away in January 2017, aged just 11.
Despite being on their feet for an incredible 11 hours a day, Team Sophie raised over £23,000, finishing their mammoth task on time at The Den on Saturday 24th March.
Joined by Lions legends Brian Horne and Jimmy Carter along the way, Team Sophie started out at The Hive, home of Barnet, before heading on to Wembley Stadium, Loftus Road (QPR), Stamford Bridge (Chelsea), Craven Cottage (Fulham), Griffin Park (Brentford) and The Cherry Red Records Stadium (AFC Wimbledon) on Day One, before Day Two took in Selhurst Park (Crystal Palace), The Valley (Charlton Athletic), the Olympic Stadium (West Ham United) and the Emirates Stadium (Arsenal) before finishing at The Den.
A total of 75 people took part in the walk, with Lions supporters from as far as The Netherlands and Scotland joining in.
Chelsea allowed Team Sophie to pose for pictures with the Premier League trophy, whilst Arsenal gave all a tour of their media centre, changing rooms, tunnel and dugouts.
Karen and Team Sophie are overwhelmed by the support, but you can still donate by clicking here.
A post-walk celebration and charity night is being held at The Den on Saturday 7th April, after The Lions take on Bristol City in the Sky Bet Championship, from 7.30–11.30pm, where items such as signed shirts and footballs - donated by clubs - will be auctioned.
For more details, follow @teamsophie54 on Twitter or email firstname.lastname@example.org.