Indeed, the Monster was around when St Columba made his way from Iona up Loch Ness to visit the Picts, in the late 6th century -Who knows? ..............perhaps this Titanic too......... slaughtered in Rome for instance fighting and running through Gaul and Italie.............
Adomnan in Vita Columbae (early 8th cent) tells of 'a certain water-beast' driven away by the saint's powerful prayers -
he and his monks saw the funeral of a man who'd gone swimming and been seized and most savagely bitten by the beast,
so Columba sent a "volunteer" (Lugnu mocu-Min) to swim in the Loch -
the monster "whose appetite had earlier been not so much sated as whetted for prey,
lurked in the depth of the water, [then] suddenly swam up to the surface and with gaping mouth and great roaring rushed towards [Lugnu]"
Columba raised his hand and made the sign of the Cross, saying "You will go no further, do not touch the man, turn back quick!",
and the monster, "as if pulled back by ropes, fled terrified in swift retreat,
although it had got so close to Lugnu there was no more than the length of one short pole between man and beast!"
[So of course there's a Loch Ness Monster!]