The first person to return alive from a visit to the Shrouders, the experience appears to make Lascaille autistic. He experiences a period of lucidity when he explains to Dan Sylveste how to be altered by the Pattern Jugglers to visit the Shrouders. Lascaille then apparently commits suicide, having completed the task the Shrouders had impressed upon him. In the later novel The Prefect, his alpha simulation becomes the intelligence inside The Clockmaker, and it is revealed that his "suicide" was actually murder.