Eric didn't show how surprised he actually was, but he really, really was. He did remember those times, he did remember when their parents just wanted them and especially Tycho just to study and behave, when all his good intention always crushed against boredom and the call of a new game... he remembered how fun he had back then with his brother... how much he enjoyed riding or hunting or going to swim in some new hidden place, or climb tall trees... and he remembered the hard punishments as well, the tears they both cried, the anger of his parents and of Tycho... he didn't think his brother could be too fond on this memories...
"I doubt you'd like much if I tried to involve you in any of my pastimes, brother" he shrugged with a smile. He was right, past times weren't destined to come back....