SIR,  The Children's Trust, the UK's charity for children with brain injury, has a few guaranteed places available for the Virgin Money London Marathon on Sunday 26th April and also the Brighton Marathon on Sunday 12th April. Places must be filled by Friday 30th January, so if you would like to secure a place in either marathon don't delay, contact Bryony on 01737 365018  or: [email protected]">[email protected] Children's Trust (Surrey)