Within this field, Holly could detect the presence of non-human lifeforms, such as Frankenstein, and alert Captain Hollister to them. Lister was keeping his smuggled pet cat hidden in his sleeping quarters at the time. (The End, Series I) When there was a serious drought aboard the Red Dwarf, the internal scanners led them to the problem in the Water Tank on G Deck. This may have also contributed to the flooding of Holly's databanks. (Back to Earth)