Thistle bowed out of the Challenge Cup at the first round to Premier 1 League leaders, Heriot Vale.
Despite a valiant effort in the second half, which saw periods of dominant possession, and a struck cross bar, the Linlithgow side was unable to score.
Thistle were undone by two early goals (3rd and 7th minute), the first from a freekick and the second by way of a chip over Bruce.
With a number of key personnel missing though injury, it was an opportune fixture to test the squad and, other than the early stages, they did not disappoint.
Thistle will host current Premier 2 leaders, Lochend next week.