From boons and banes...

Firstly, Erik makes his Engineer (electronics) check. He gets an Effect of 5, which grants DM+1 to the next task in the chain. Kathya will now make her Sensors check with DM+1 thanks to Erik’s efforts.

Chains of linked task checks can be formed.

To continue the previous example, if Morn were then to use his Science (geology) skill to determine which of the heat traces from Kathya’s sensor readings were the

Travellers need not rely on one another to create a task chain. One Traveller working diligently on something that requires multiple task chains can potentially link them together if the referee agrees that one can affect another.

result of natural geological activity, and which were heat exhausts from a hidden base, then Kathya’s Sensors check would be the previous check in the chain leading to his Science (geology) check, and so her Effect would grant a DM for his check.