Book 1 of the 'Wappy Ding-Do Trilogy' by British author Paul Cook charts the entity's encounter and captivity within the liquid silver lake in perpetual suspension inhabited by the malevolent Dalbinae.
Excerpt
'In reality, the sanitization undertaken by the Dalbinae was of secondary importance and subservient to a darker, primary motive; the harvesting of the pysche. The Dalbinae were a deeply malevolent species and had, for trillions of eons of time, trapped and withheld countless entities and celestial beings against their will within the array. For those captured by the entity, an environment commensurate with the individual needs required for their survival and perceived contentment was immediately manufactured. However, the concept of being free to leave the array was never comprehended by the array and therefore completely anathema to their ethos. Hence, those hosted within the array were very definitely prisoners who were subjected to perpetual and infinite physic invasion.'