Glasgow-based PD library run by Alan Scully. Similar in execution to Robot PD - the two libraries were implacably hostile - it had perhaps a less imaginative range of programs but faster delivery. Among its original programs were Pagemaker (sold in a commercial, homebrew version as Pagemaker Deluxe) and the Mac games.
Scull later became Scull SL ('Software Library') and was taken over by Graeme Chesser. Graeme renamed it Domain PD. Eventually, it passed into the hands of Arthur Cook and became King Arthur's Domain.
It had its own fanzine, CPC Domain, which also became independent and eventually moved from paper to disc.