Hawa en Adam S01E04 - Op de vlucht

On Hawa's advice, Adam flees from the hospital and goes in search of his good friend Jakob. Hawa goes geocaching with Bilo and Titus, a hobby of Titus. When Adam arrives at Jacob's, no one is home. Adam makes a bizarre discovery: the handwriting on the card, which according to Adam's sister Sam was written by Jakob, does not match Jakob's handwriting. Why is Sam lying about that?