Some mountains steeped in tradition hold an iconic and emblematic significance, their summits being often topped with crosses, memorials and mountaineer postboxes.
Post-it notes and sellotape were seen outside being used to stick residents' names to the overflowing postboxes, suggesting there was a high turnover of insalubrious tenants.
This task becomes increasingly difficult with each new mission, and the aliens are capable of hiding inside objects such as plants, postboxes, trashcans, drums, and other items.
