An alternative to Harry doing the ritual would be that Harry get’s sacrificed by a ritual of Quirrelmort to bring back Voldemort.
Given how much Harry trust Quirrelmort, it should be in Quirrelmort’s power.
Harry doesn’t trust Quirrell anymore, hasn’t trusted him since the Azkaban arc. That was made pretty clear inthe conversation in the dark warehouse immediately after the raid.
An alternative to Harry doing the ritual would be that Harry get’s sacrificed by a ritual of Quirrelmort to bring back Voldemort.
Given how much Harry trust Quirrelmort, it should be in Quirrelmort’s power.
Harry doesn’t trust Quirrell anymore, hasn’t trusted him since the Azkaban arc. That was made pretty clear inthe conversation in the dark warehouse immediately after the raid.